Re: [PATCH v3 3/3] powerpc/32: Add KASAN support

From: Dmitry Vyukov
Date: Mon Jan 21 2019 - 07:34:04 EST

Next message: Pintu Agarwal: "Re: Need help: how to locate failure from irq_chip subsystem"
Previous message: Popa, Stefan Serban: "Re: [PATCH v2 1/2] iio: adc: Add AD7768-1 ADC basic support"
In reply to: Christophe Leroy: "Re: [PATCH v3 3/3] powerpc/32: Add KASAN support"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Mon, Jan 21, 2019 at 11:36 AM Christophe Leroy
<christophe.leroy@xxxxxx> wrote:
>
>
>
> Le 15/01/2019 Ã 18:23, Andrey Ryabinin a Ãcrit :
> >
> >
> > On 1/12/19 2:16 PM, Christophe Leroy wrote:
> >
> >> +KASAN_SANITIZE_early_32.o := n
> >> +KASAN_SANITIZE_cputable.o := n
> >> +KASAN_SANITIZE_prom_init.o := n
> >> +
> >
> > Usually it's also good idea to disable branch profiling - define DISABLE_BRANCH_PROFILING
> > either in top of these files or via Makefile. Branch profiling redefines if() statement and calls
> > instrumented ftrace_likely_update in every if().
> >
> >
> >
> >> diff --git a/arch/powerpc/mm/kasan_init.c b/arch/powerpc/mm/kasan_init.c
> >> new file mode 100644
> >> index 000000000000..3edc9c2d2f3e
> >
> >> +void __init kasan_init(void)
> >> +{
> >> + struct memblock_region *reg;
> >> +
> >> + for_each_memblock(memory, reg)
> >> + kasan_init_region(reg);
> >> +
> >> + pr_info("KASAN init done\n");
> >
> > Without "init_task.kasan_depth = 0;" kasan will not repot bugs.
> >
> > There is test_kasan module. Make sure that it produce reports.
> >
>
> I get the following report with test_kasan module.
>
> Could you have a look at it and tell if everything is as expected ?

Unfortunately kernel does not support tests that could check this.
This is called a test, but it does not actually test anything. There
is bug open for this:
https://bugzilla.kernel.org/show_bug.cgi?id=198441

You need to look at each test and understand if it is supposed to
produce a report or not, and then check if it actually produced the
report or not. In most cases this can be understood from the test name
(hopefully).

> [ 667.298897] kasan test: kmalloc_oob_right out-of-bounds to right
> [ 667.299036]
> ==================================================================
> [ 667.306263] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_right+0x74/0x94 [test_kasan]
> [ 667.313929] Write of size 1 at addr c53996fb by task exe/340
> [ 667.319451]
> [ 667.321021] CPU: 0 PID: 340 Comm: exe Not tainted
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 667.321072] Call Trace:
> [ 667.321248] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 667.321452] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 667.321741] [c5649ce0] [c95d41d4] kmalloc_oob_right+0x74/0x94
> [test_kasan]
> [ 667.322022] [c5649d00] [c95d5510] kmalloc_tests_init+0x18/0x2d0
> [test_kasan]
> [ 667.322214] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 667.322428] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 667.322630] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 667.322834] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 667.323027] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 667.323193] --- interrupt: c01 at 0xfd6b914
> [ 667.323193] LR = 0x1001364c
> [ 667.323239]
> [ 667.324561] Allocated by task 340:
> [ 667.327993] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 667.328241] kmalloc_oob_right+0x44/0x94 [test_kasan]
> [ 667.328477] kmalloc_tests_init+0x18/0x2d0 [test_kasan]
> [ 667.328622] do_one_initcall+0x40/0x278
> [ 667.328792] do_init_module+0xcc/0x59c
> [ 667.328948] load_module+0x2bc4/0x320c
> [ 667.329107] sys_init_module+0x114/0x138
> [ 667.329250] ret_from_syscall+0x0/0x38
> [ 667.329298]
> [ 667.330580] Freed by task 335:
> [ 667.333667] __kasan_slab_free+0x120/0x22c
> [ 667.333788] kfree+0x74/0x270
> [ 667.333950] load_elf_binary+0xb0/0x162c
> [ 667.334129] search_binary_handler+0x120/0x374
> [ 667.334297] __do_execve_file+0x834/0xb20
> [ 667.334460] sys_execve+0x40/0x54
> [ 667.334605] ret_from_syscall+0x0/0x38
> [ 667.334652]
> [ 667.335954] The buggy address belongs to the object at c5399680
> [ 667.335954] which belongs to the cache kmalloc-128 of size 128
> [ 667.347675] The buggy address is located 123 bytes inside of
> [ 667.347675] 128-byte region [c5399680, c5399700)
> [ 667.357847] The buggy address belongs to the page:
> [ 667.362634] page:c7fd9cc0 count:1 mapcount:0 mapping:c5007a80 index:0x0
> [ 667.362745] flags: 0x200(slab)
> [ 667.362973] raw: 00000200 00000100 00000200 c5007a80 00000000
> 005500ab ffffffff 00000001
> [ 667.363043] page dumped because: kasan: bad access detected
> [ 667.363083]
> [ 667.364384] Memory state around the buggy address:
> [ 667.369190] c5399580: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
> [ 667.375645] c5399600: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
> [ 667.382099] >c5399680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03
> [ 667.388496] ^
> [ 667.394921] c5399700: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
> [ 667.401377] c5399780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
> [ 667.407767]
> ==================================================================
> [ 667.414904] Disabling lock debugging due to kernel taint
> [ 667.421182] kasan test: kmalloc_oob_left out-of-bounds to left
> [ 667.421314]
> ==================================================================
> [ 667.428466] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_left+0x74/0x9c [test_kasan]
> [ 667.436045] Read of size 1 at addr c58e9ddf by task exe/340
> [ 667.441483]
> [ 667.443064] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 667.443115] Call Trace:
> [ 667.443290] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 667.443492] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 667.443779] [c5649ce0] [c95d4268] kmalloc_oob_left+0x74/0x9c [test_kasan]
> [ 667.444057] [c5649d00] [c95d5514] kmalloc_tests_init+0x1c/0x2d0
> [test_kasan]
> [ 667.444246] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 667.444458] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 667.444658] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 667.444859] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 667.445051] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 667.445215] --- interrupt: c01 at 0xfd6b914
> [ 667.445215] LR = 0x1001364c
> [ 667.445260]
> [ 667.446593] Allocated by task 340:
> [ 667.450025] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 667.450191] do_init_module+0x2c/0x59c
> [ 667.450346] load_module+0x2bc4/0x320c
> [ 667.450503] sys_init_module+0x114/0x138
> [ 667.450645] ret_from_syscall+0x0/0x38
> [ 667.450691]
> [ 667.452009] Freed by task 276:
> [ 667.455096] __kasan_slab_free+0x120/0x22c
> [ 667.455214] kfree+0x74/0x270
> [ 667.455344] single_release+0x54/0x6c
> [ 667.455516] close_pdeo+0x128/0x224
> [ 667.455680] proc_reg_release+0x110/0x128
> [ 667.455811] __fput+0xec/0x2d4
> [ 667.455934] task_work_run+0x13c/0x15c
> [ 667.456101] do_notify_resume+0x3d8/0x438
> [ 667.456248] do_user_signal+0x2c/0x34
> [ 667.456294]
> [ 667.457641] The buggy address belongs to the object at c58e9dc0
> [ 667.457641] which belongs to the cache kmalloc-16 of size 16
> [ 667.469191] The buggy address is located 15 bytes to the right of
> [ 667.469191] 16-byte region [c58e9dc0, c58e9dd0)
> [ 667.479708] The buggy address belongs to the page:
> [ 667.484495] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 667.484606] flags: 0x200(slab)
> [ 667.484833] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 667.484900] page dumped because: kasan: bad access detected
> [ 667.484940]
> [ 667.486244] Memory state around the buggy address:
> [ 667.491051] c58e9c80: 00 00 fc fc 00 00 fc fc 00 00 fc fc 00 00 fc fc
> [ 667.497505] c58e9d00: 00 00 fc fc 00 00 fc fc 00 00 fc fc 00 00 fc fc
> [ 667.503959] >c58e9d80: 00 00 fc fc 00 00 fc fc 00 04 fc fc 00 07 fc fc
> [ 667.510354] ^
> [ 667.515748] c58e9e00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 667.522204] c58e9e80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 667.528595]
> ==================================================================
> [ 667.803662] kasan test: kmalloc_node_oob_right kmalloc_node():
> out-of-bounds to right
> [ 667.803806]
> ==================================================================
> [ 667.811008] BUG: KASAN: slab-out-of-bounds in
> kmalloc_node_oob_right+0x74/0x94 [test_kasan]
> [ 667.819105] Write of size 1 at addr c59a4300 by task exe/340
> [ 667.824627]
> [ 667.826209] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 667.826260] Call Trace:
> [ 667.826436] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 667.826640] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 667.826931] [c5649ce0] [c95d4304] kmalloc_node_oob_right+0x74/0x94
> [test_kasan]
> [ 667.827211] [c5649d00] [c95d5518] kmalloc_tests_init+0x20/0x2d0
> [test_kasan]
> [ 667.827402] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 667.827616] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 667.827818] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 667.828022] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 667.828216] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 667.828382] --- interrupt: c01 at 0xfd6b914
> [ 667.828382] LR = 0x1001364c
> [ 667.828428]
> [ 667.829737] Allocated by task 340:
> [ 667.833169] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 667.833420] kmalloc_node_oob_right+0x44/0x94 [test_kasan]
> [ 667.833656] kmalloc_tests_init+0x20/0x2d0 [test_kasan]
> [ 667.833801] do_one_initcall+0x40/0x278
> [ 667.833970] do_init_module+0xcc/0x59c
> [ 667.834125] load_module+0x2bc4/0x320c
> [ 667.834284] sys_init_module+0x114/0x138
> [ 667.834427] ret_from_syscall+0x0/0x38
> [ 667.834475]
> [ 667.835756] Freed by task 319:
> [ 667.838843] __kasan_slab_free+0x120/0x22c
> [ 667.838963] kfree+0x74/0x270
> [ 667.839137] kobject_uevent_env+0x15c/0x65c
> [ 667.839299] led_trigger_set+0x3f0/0x4fc
> [ 667.839451] led_trigger_store+0xd8/0x164
> [ 667.839593] kernfs_fop_write+0x18c/0x218
> [ 667.839721] __vfs_write+0x5c/0x258
> [ 667.839843] vfs_write+0xe4/0x248
> [ 667.839966] ksys_write+0x58/0xd8
> [ 667.840111] ret_from_syscall+0x0/0x38
> [ 667.840158]
> [ 667.841475] The buggy address belongs to the object at c59a3300
> [ 667.841475] which belongs to the cache kmalloc-4k of size 4096
> [ 667.853196] The buggy address is located 0 bytes to the right of
> [ 667.853196] 4096-byte region [c59a3300, c59a4300)
> [ 667.863798] The buggy address belongs to the page:
> [ 667.868586] page:c7fdcd00 count:1 mapcount:0 mapping:c50075a0
> index:0x0 compound_mapcount: 0
> [ 667.868727] flags: 0x10200(slab|head)
> [ 667.868956] raw: 00010200 00000100 00000200 c50075a0 00000000
> 000f001f ffffffff 00000001
> [ 667.869025] page dumped because: kasan: bad access detected
> [ 667.869065]
> [ 667.870334] Memory state around the buggy address:
> [ 667.875141] c59a4200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 667.881595] c59a4280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 667.888049] >c59a4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 667.894436] ^
> [ 667.896998] c59a4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 667.903454] c59a4400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 667.909845]
> ==================================================================
> [ 667.923434] kasan test: kmalloc_pagealloc_oob_right kmalloc pagealloc
> allocation: out-of-bounds to right
> [ 667.923647]
> ==================================================================
> [ 667.930896] BUG: KASAN: slab-out-of-bounds in
> kmalloc_pagealloc_oob_right+0x78/0x98 [test_kasan]
> [ 667.939503] Write of size 1 at addr c5bd800a by task exe/340
> [ 667.945024]
> [ 667.946607] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 667.946657] Call Trace:
> [ 667.946833] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 667.947035] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 667.947325] [c5649ce0] [c95d4674]
> kmalloc_pagealloc_oob_right+0x78/0x98 [test_kasan]
> [ 667.947603] [c5649d00] [c95d551c] kmalloc_tests_init+0x24/0x2d0
> [test_kasan]
> [ 667.947792] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 667.948004] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 667.948204] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 667.948406] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 667.948597] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 667.948760] --- interrupt: c01 at 0xfd6b914
> [ 667.948760] LR = 0x1001364c
> [ 667.948806]
> [ 667.950115] The buggy address belongs to the page:
> [ 667.954903] page:c7fdde80 count:1 mapcount:0 mapping:00000000
> index:0x0 compound_mapcount: 0
> [ 667.955038] flags: 0x10000(head)
> [ 667.955260] raw: 00010000 00000100 00000200 00000000 00000000
> 00000000 ffffffff 00000001
> [ 667.955327] page dumped because: kasan: bad access detected
> [ 667.955367]
> [ 667.956652] Memory state around the buggy address:
> [ 667.961458] c5bd7f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 667.967912] c5bd7f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 667.974367] >c5bd8000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
> [ 667.980755] ^
> [ 667.983574] c5bd8080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
> [ 667.990030] c5bd8100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
> [ 667.996420]
> ==================================================================
> [ 668.222064] kasan test: kmalloc_pagealloc_uaf kmalloc pagealloc
> allocation: use-after-free
> [ 668.222349]
> ==================================================================
> [ 668.229525] BUG: KASAN: use-after-free in
> kmalloc_pagealloc_uaf+0x78/0x94 [test_kasan]
> [ 668.237274] Write of size 1 at addr c5bd0000 by task exe/340
> [ 668.242796]
> [ 668.244378] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 668.244429] Call Trace:
> [ 668.244606] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 668.244810] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 668.245100] [c5649ce0] [c95d470c] kmalloc_pagealloc_uaf+0x78/0x94
> [test_kasan]
> [ 668.245381] [c5649d00] [c95d5520] kmalloc_tests_init+0x28/0x2d0
> [test_kasan]
> [ 668.245573] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 668.245787] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 668.245989] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 668.246192] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 668.246386] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 668.246552] --- interrupt: c01 at 0xfd6b914
> [ 668.246552] LR = 0x1001364c
> [ 668.246598]
> [ 668.247886] The buggy address belongs to the page:
> [ 668.252671] page:c7fdde80 count:0 mapcount:-128 mapping:00000000
> index:0x0
> [ 668.252769] flags: 0x0()
> [ 668.252994] raw: 00000000 c7fdcf84 c0982ae8 00000000 00000000
> 00000002 ffffff7f 00000000
> [ 668.253062] page dumped because: kasan: bad access detected
> [ 668.253102]
> [ 668.254337] Memory state around the buggy address:
> [ 668.259143] c5bcff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.265597] c5bcff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.272052] >c5bd0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> [ 668.278439] ^
> [ 668.281001] c5bd0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> [ 668.287458] c5bd0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> [ 668.293847]
> ==================================================================
> [ 668.310744] kasan test: kmalloc_pagealloc_invalid_free kmalloc
> pagealloc allocation: invalid-free
> [ 668.310957]
> ==================================================================
> [ 668.318156] BUG: KASAN: double-free or invalid-free in
> kmalloc_tests_init+0x2c/0x2d0 [test_kasan]
> [ 668.326705]
> [ 668.328286] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 668.328337] Call Trace:
> [ 668.328512] [c5649c80] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 668.328724] [c5649cb0] [c0176c24] kasan_report_invalid_free+0x48/0x74
> [ 668.328888] [c5649ce0] [c0173c14] kfree+0x1f8/0x270
> [ 668.329176] [c5649d00] [c95d5524] kmalloc_tests_init+0x2c/0x2d0
> [test_kasan]
> [ 668.329365] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 668.329577] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 668.329777] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 668.329978] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 668.330170] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 668.330334] --- interrupt: c01 at 0xfd6b914
> [ 668.330334] LR = 0x1001364c
> [ 668.330379]
> [ 668.331622] The buggy address belongs to the page:
> [ 668.336410] page:c7fdde80 count:1 mapcount:0 mapping:00000000
> index:0x0 compound_mapcount: 0
> [ 668.336545] flags: 0x10000(head)
> [ 668.336767] raw: 00010000 00000100 00000200 00000000 00000000
> 00000000 ffffffff 00000001
> [ 668.336834] page dumped because: kasan: bad access detected
> [ 668.336873]
> [ 668.338158] Memory state around the buggy address:
> [ 668.342965] c5bcff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.349419] c5bcff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.355874] >c5bd0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 668.362260] ^
> [ 668.364822] c5bd0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 668.371279] c5bd0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 668.377668]
> ==================================================================
> [ 668.528086] kasan test: kmalloc_large_oob_right kmalloc large
> allocation: out-of-bounds to right
> [ 668.528279]
> ==================================================================
> [ 668.535471] BUG: KASAN: slab-out-of-bounds in
> kmalloc_large_oob_right+0x74/0x94 [test_kasan]
> [ 668.543735] Write of size 1 at addr c5498700 by task exe/340
> [ 668.549257]
> [ 668.550840] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 668.550891] Call Trace:
> [ 668.551068] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 668.551272] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 668.551561] [c5649ce0] [c95d4398] kmalloc_large_oob_right+0x74/0x94
> [test_kasan]
> [ 668.551842] [c5649d00] [c95d5528] kmalloc_tests_init+0x30/0x2d0
> [test_kasan]
> [ 668.552034] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 668.552248] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 668.552450] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 668.552655] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 668.552848] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 668.553013] --- interrupt: c01 at 0xfd6b914
> [ 668.553013] LR = 0x1001364c
> [ 668.553059]
> [ 668.554367] Allocated by task 340:
> [ 668.557799] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 668.558049] kmalloc_large_oob_right+0x44/0x94 [test_kasan]
> [ 668.558285] kmalloc_tests_init+0x30/0x2d0 [test_kasan]
> [ 668.558430] do_one_initcall+0x40/0x278
> [ 668.558599] do_init_module+0xcc/0x59c
> [ 668.558756] load_module+0x2bc4/0x320c
> [ 668.558915] sys_init_module+0x114/0x138
> [ 668.559058] ret_from_syscall+0x0/0x38
> [ 668.559106]
> [ 668.560386] Freed by task 173:
> [ 668.563473] __kasan_slab_free+0x120/0x22c
> [ 668.563595] kfree+0x74/0x270
> [ 668.563763] consume_skb+0x38/0x138
> [ 668.563935] skb_free_datagram+0x1c/0x80
> [ 668.564104] netlink_recvmsg+0x1d0/0x4d4
> [ 668.564270] ___sys_recvmsg+0xd8/0x194
> [ 668.564436] __sys_recvmsg+0x40/0x8c
> [ 668.564563] sys_socketcall+0xf8/0x210
> [ 668.564709] ret_from_syscall+0x0/0x38
> [ 668.564756]
> [ 668.566106] The buggy address belongs to the object at c5490800
> [ 668.566106] which belongs to the cache kmalloc-32k of size 32768
> [ 668.578000] The buggy address is located 32512 bytes inside of
> [ 668.578000] 32768-byte region [c5490800, c5498800)
> [ 668.588514] The buggy address belongs to the page:
> [ 668.593302] page:c7fda400 count:1 mapcount:0 mapping:c5007330
> index:0x0 compound_mapcount: 0
> [ 668.593443] flags: 0x10200(slab|head)
> [ 668.593672] raw: 00010200 00000100 00000200 c5007330 00000000
> 00030007 ffffffff 00000001
> [ 668.593741] page dumped because: kasan: bad access detected
> [ 668.593781]
> [ 668.595051] Memory state around the buggy address:
> [ 668.599857] c5498600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 668.606311] c5498680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 668.612765] >c5498700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.619152] ^
> [ 668.621714] c5498780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.628171] c5498800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 668.634561]
> ==================================================================
> [ 668.645940] kasan test: kmalloc_oob_krealloc_more out-of-bounds after
> krealloc more
> [ 668.646103]
> ==================================================================
> [ 668.653286] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_krealloc_more+0x8c/0xac [test_kasan]
> [ 668.661723] Write of size 1 at addr c53e8ca3 by task exe/340
> [ 668.667245]
> [ 668.668827] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 668.668877] Call Trace:
> [ 668.669052] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 668.669254] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 668.669543] [c5649ce0] [c95d4838] kmalloc_oob_krealloc_more+0x8c/0xac
> [test_kasan]
> [ 668.669823] [c5649d00] [c95d552c] kmalloc_tests_init+0x34/0x2d0
> [test_kasan]
> [ 668.670012] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 668.670225] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 668.670426] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 668.670627] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 668.670819] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 668.670982] --- interrupt: c01 at 0xfd6b914
> [ 668.670982] LR = 0x1001364c
> [ 668.671027]
> [ 668.672354] Allocated by task 340:
> [ 668.675786] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 668.675935] krealloc+0xb0/0xe8
> [ 668.676185] kmalloc_oob_krealloc_more+0x58/0xac [test_kasan]
> [ 668.676419] kmalloc_tests_init+0x34/0x2d0 [test_kasan]
> [ 668.676563] do_one_initcall+0x40/0x278
> [ 668.676730] do_init_module+0xcc/0x59c
> [ 668.676885] load_module+0x2bc4/0x320c
> [ 668.677042] sys_init_module+0x114/0x138
> [ 668.677185] ret_from_syscall+0x0/0x38
> [ 668.677231]
> [ 668.678543] Freed by task 0:
> [ 668.681460] __kasan_slab_free+0x120/0x22c
> [ 668.681579] kfree+0x74/0x270
> [ 668.681726] rcu_process_callbacks+0x384/0x620
> [ 668.681858] __do_softirq+0x134/0x48c
> [ 668.681904]
> [ 668.683231] The buggy address belongs to the object at c53e8c90
> [ 668.683231] which belongs to the cache kmalloc-32 of size 32
> [ 668.694778] The buggy address is located 19 bytes inside of
> [ 668.694778] 32-byte region [c53e8c90, c53e8cb0)
> [ 668.704780] The buggy address belongs to the page:
> [ 668.709568] page:c7fd9f40 count:1 mapcount:0 mapping:c5007cf0 index:0x0
> [ 668.709676] flags: 0x200(slab)
> [ 668.709903] raw: 00000200 00000100 00000200 c5007cf0 00000000
> 015502ab ffffffff 00000001
> [ 668.709970] page dumped because: kasan: bad access detected
> [ 668.710010]
> [ 668.711317] Memory state around the buggy address:
> [ 668.716124] c53e8b80: 00 fc fc fc 00 00 00 fc fc fc fb fb fb fb fc fc
> [ 668.722579] c53e8c00: 00 00 00 04 fc fc 00 00 00 04 fc fc 00 00 00 00
> [ 668.729033] >c53e8c80: fc fc 00 00 03 fc fc fc 00 00 00 00 fc fc 00 00
> [ 668.735421] ^
> [ 668.739014] c53e8d00: 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00 fc fc
> [ 668.745470] c53e8d80: 00 00 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00
> [ 668.751860]
> ==================================================================
> [ 669.016775] kasan test: kmalloc_oob_krealloc_less out-of-bounds after
> krealloc less
> [ 669.016942]
> ==================================================================
> [ 669.024120] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_krealloc_less+0x8c/0xac [test_kasan]
> [ 669.032474] Write of size 1 at addr c53e8bdf by task exe/340
> [ 669.037995]
> [ 669.039577] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 669.039628] Call Trace:
> [ 669.039803] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 669.040007] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 669.040299] [c5649ce0] [c95d48e4] kmalloc_oob_krealloc_less+0x8c/0xac
> [test_kasan]
> [ 669.040580] [c5649d00] [c95d5530] kmalloc_tests_init+0x38/0x2d0
> [test_kasan]
> [ 669.040771] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 669.040984] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 669.041187] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 669.041390] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 669.041584] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 669.041750] --- interrupt: c01 at 0xfd6b914
> [ 669.041750] LR = 0x1001364c
> [ 669.041796]
> [ 669.043105] Allocated by task 340:
> [ 669.046537] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 669.046687] krealloc+0xb0/0xe8
> [ 669.046940] kmalloc_oob_krealloc_less+0x58/0xac [test_kasan]
> [ 669.047176] kmalloc_tests_init+0x38/0x2d0 [test_kasan]
> [ 669.047321] do_one_initcall+0x40/0x278
> [ 669.047491] do_init_module+0xcc/0x59c
> [ 669.047648] load_module+0x2bc4/0x320c
> [ 669.047806] sys_init_module+0x114/0x138
> [ 669.047951] ret_from_syscall+0x0/0x38
> [ 669.047998]
> [ 669.049294] Freed by task 0:
> [ 669.052211] __kasan_slab_free+0x120/0x22c
> [ 669.052332] kfree+0x74/0x270
> [ 669.052479] rcu_process_callbacks+0x384/0x620
> [ 669.052612] __do_softirq+0x134/0x48c
> [ 669.052659]
> [ 669.053981] The buggy address belongs to the object at c53e8bd0
> [ 669.053981] which belongs to the cache kmalloc-32 of size 32
> [ 669.065529] The buggy address is located 15 bytes inside of
> [ 669.065529] 32-byte region [c53e8bd0, c53e8bf0)
> [ 669.075531] The buggy address belongs to the page:
> [ 669.080318] page:c7fd9f40 count:1 mapcount:0 mapping:c5007cf0 index:0x0
> [ 669.080428] flags: 0x200(slab)
> [ 669.080655] raw: 00000200 00000100 00000200 c5007cf0 00000000
> 015502ab ffffffff 00000001
> [ 669.080724] page dumped because: kasan: bad access detected
> [ 669.080764]
> [ 669.082068] Memory state around the buggy address:
> [ 669.086874] c53e8a80: 00 00 00 fc fc fc 00 00 00 fc fc fc 00 00 00 00
> [ 669.093328] c53e8b00: fc fc 00 00 00 fc fc fc 00 00 00 fc fc fc 00 00
> [ 669.099783] >c53e8b80: 00 fc fc fc 00 00 00 fc fc fc 00 07 fc fc fc fc
> [ 669.106177] ^
> [ 669.111572] c53e8c00: 00 00 00 04 fc fc 00 00 00 04 fc fc 00 00 00 00
> [ 669.118028] c53e8c80: fc fc fb fb fb fb fc fc 00 00 00 00 fc fc 00 00
> [ 669.124418]
> ==================================================================
> [ 669.137359] kasan test: kmalloc_oob_16 kmalloc out-of-bounds for
> 16-bytes access
> [ 669.137538]
> ==================================================================
> [ 669.144772] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_16+0x94/0xdc [test_kasan]
> [ 669.152181] Write of size 16 at addr c58eada0 by task exe/340
> [ 669.157790]
> [ 669.159371] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 669.159421] Call Trace:
> [ 669.159597] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 669.159799] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 669.160086] [c5649ce0] [c95d444c] kmalloc_oob_16+0x94/0xdc [test_kasan]
> [ 669.160365] [c5649d00] [c95d5534] kmalloc_tests_init+0x3c/0x2d0
> [test_kasan]
> [ 669.160554] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 669.160765] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 669.160966] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 669.161167] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 669.161360] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 669.161523] --- interrupt: c01 at 0xfd6b914
> [ 669.161523] LR = 0x1001364c
> [ 669.161569]
> [ 669.162900] Allocated by task 340:
> [ 669.166332] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 669.166578] kmalloc_oob_16+0x48/0xdc [test_kasan]
> [ 669.166812] kmalloc_tests_init+0x3c/0x2d0 [test_kasan]
> [ 669.166955] do_one_initcall+0x40/0x278
> [ 669.167121] do_init_module+0xcc/0x59c
> [ 669.167275] load_module+0x2bc4/0x320c
> [ 669.167432] sys_init_module+0x114/0x138
> [ 669.167575] ret_from_syscall+0x0/0x38
> [ 669.167620]
> [ 669.168919] Freed by task 338:
> [ 669.172004] __kasan_slab_free+0x120/0x22c
> [ 669.172122] kfree+0x74/0x270
> [ 669.172264] walk_component+0x150/0x478
> [ 669.172399] link_path_walk+0x374/0x63c
> [ 669.172535] path_openat+0xe4/0x15f8
> [ 669.172674] do_filp_open+0xd0/0x120
> [ 669.172843] do_open_execat+0x64/0x264
> [ 669.173010] __do_execve_file+0xa0c/0xb20
> [ 669.173172] sys_execve+0x40/0x54
> [ 669.173318] ret_from_syscall+0x0/0x38
> [ 669.173364]
> [ 669.174722] The buggy address belongs to the object at c58eada0
> [ 669.174722] which belongs to the cache kmalloc-16 of size 16
> [ 669.186269] The buggy address is located 0 bytes inside of
> [ 669.186269] 16-byte region [c58eada0, c58eadb0)
> [ 669.196187] The buggy address belongs to the page:
> [ 669.200974] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 669.201083] flags: 0x200(slab)
> [ 669.201310] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 669.201378] page dumped because: kasan: bad access detected
> [ 669.201417]
> [ 669.202723] Memory state around the buggy address:
> [ 669.207530] c58eac80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.213984] c58ead00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.220438] >c58ead80: fb fb fc fc 00 05 fc fc 00 00 fc fc fb fb fc fc
> [ 669.226828] ^
> [ 669.230678] c58eae00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.237134] c58eae80: fb fb fc fc fb fb fc fc fb fb fc fc 00 04 fc fc
> [ 669.243524]
> ==================================================================
> [ 669.521937] kasan test: kmalloc_oob_in_memset out-of-bounds in memset
> [ 669.522086]
> ==================================================================
> [ 669.529294] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_in_memset+0x78/0x90 [test_kasan]
> [ 669.537306] Write of size 671 at addr c5881b00 by task exe/340
> [ 669.543000]
> [ 669.544581] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 669.544632] Call Trace:
> [ 669.544808] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 669.545012] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 669.545186] [c5649cc0] [c0175700] memset+0x2c/0x4c
> [ 669.545477] [c5649ce0] [c95d497c] kmalloc_oob_in_memset+0x78/0x90
> [test_kasan]
> [ 669.545759] [c5649d00] [c95d5538] kmalloc_tests_init+0x40/0x2d0
> [test_kasan]
> [ 669.545949] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 669.546163] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 669.546366] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 669.546570] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 669.546764] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 669.546929] --- interrupt: c01 at 0xfd6b914
> [ 669.546929] LR = 0x1001364c
> [ 669.546976]
> [ 669.548281] Allocated by task 340:
> [ 669.551713] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 669.551963] kmalloc_oob_in_memset+0x44/0x90 [test_kasan]
> [ 669.552199] kmalloc_tests_init+0x40/0x2d0 [test_kasan]
> [ 669.552346] do_one_initcall+0x40/0x278
> [ 669.552515] do_init_module+0xcc/0x59c
> [ 669.552672] load_module+0x2bc4/0x320c
> [ 669.552831] sys_init_module+0x114/0x138
> [ 669.552976] ret_from_syscall+0x0/0x38
> [ 669.553023]
> [ 669.554300] Freed by task 131:
> [ 669.557387] __kasan_slab_free+0x120/0x22c
> [ 669.557508] kfree+0x74/0x270
> [ 669.557682] pskb_expand_head+0x2b0/0x434
> [ 669.557843] netlink_trim+0xfc/0x114
> [ 669.558009] netlink_broadcast_filtered+0x48/0x530
> [ 669.558169] nlmsg_notify+0x7c/0x128
> [ 669.558330] fib6_add+0xd44/0x11d4
> [ 669.558461] __ip6_ins_rt+0x5c/0x88
> [ 669.558598] ip6_ins_rt+0x34/0x44
> [ 669.558777] __ipv6_ifa_notify+0x388/0x38c
> [ 669.558945] ipv6_ifa_notify+0x68/0x88
> [ 669.559076] addrconf_dad_completed+0x54/0x49c
> [ 669.559201] addrconf_dad_work+0x558/0x84c
> [ 669.559369] process_one_work+0x408/0x78c
> [ 669.559524] worker_thread+0xb4/0x83c
> [ 669.559657] kthread+0x144/0x184
> [ 669.559811] ret_from_kernel_thread+0x14/0x1c
> [ 669.559858]
> [ 669.561223] The buggy address belongs to the object at c5881b00
> [ 669.561223] which belongs to the cache kmalloc-1k of size 1024
> [ 669.572943] The buggy address is located 0 bytes inside of
> [ 669.572943] 1024-byte region [c5881b00, c5881f00)
> [ 669.583031] The buggy address belongs to the page:
> [ 669.587818] page:c7fdc400 count:1 mapcount:0 mapping:c5007740 index:0x0
> [ 669.587929] flags: 0x200(slab)
> [ 669.588156] raw: 00000200 00000100 00000200 c5007740 00000000
> 000e001d ffffffff 00000001
> [ 669.588225] page dumped because: kasan: bad access detected
> [ 669.588265]
> [ 669.589567] Memory state around the buggy address:
> [ 669.594374] c5881c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 669.600828] c5881d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 669.607282] >c5881d80: 00 00 00 02 fc fc fc fc fc fc fc fc fc fc fc fc
> [ 669.613671] ^
> [ 669.617005] c5881e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 669.623462] c5881e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 669.629852]
> ==================================================================
> [ 669.643287] kasan test: kmalloc_oob_memset_2 out-of-bounds in memset2
> [ 669.643423]
> ==================================================================
> [ 669.650641] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_memset_2+0x7c/0x94 [test_kasan]
> [ 669.658563] Write of size 2 at addr c58eae07 by task exe/340
> [ 669.664085]
> [ 669.665668] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 669.665718] Call Trace:
> [ 669.665891] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 669.666095] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 669.666267] [c5649cc0] [c0175700] memset+0x2c/0x4c
> [ 669.666556] [c5649ce0] [c95d4a10] kmalloc_oob_memset_2+0x7c/0x94
> [test_kasan]
> [ 669.666836] [c5649d00] [c95d553c] kmalloc_tests_init+0x44/0x2d0
> [test_kasan]
> [ 669.667026] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 669.667239] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 669.667440] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 669.667643] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 669.667836] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 669.668002] --- interrupt: c01 at 0xfd6b914
> [ 669.668002] LR = 0x1001364c
> [ 669.668046]
> [ 669.669366] Allocated by task 340:
> [ 669.672799] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 669.673048] kmalloc_oob_memset_2+0x44/0x94 [test_kasan]
> [ 669.673283] kmalloc_tests_init+0x44/0x2d0 [test_kasan]
> [ 669.673426] do_one_initcall+0x40/0x278
> [ 669.673594] do_init_module+0xcc/0x59c
> [ 669.673750] load_module+0x2bc4/0x320c
> [ 669.673909] sys_init_module+0x114/0x138
> [ 669.674051] ret_from_syscall+0x0/0x38
> [ 669.674098]
> [ 669.675387] Freed by task 276:
> [ 669.678473] __kasan_slab_free+0x120/0x22c
> [ 669.678594] kfree+0x74/0x270
> [ 669.678724] single_release+0x54/0x6c
> [ 669.678897] close_pdeo+0x128/0x224
> [ 669.679064] proc_reg_release+0x110/0x128
> [ 669.679197] __fput+0xec/0x2d4
> [ 669.679320] task_work_run+0x13c/0x15c
> [ 669.679487] do_notify_resume+0x3d8/0x438
> [ 669.679636] do_user_signal+0x2c/0x34
> [ 669.679682]
> [ 669.681018] The buggy address belongs to the object at c58eae00
> [ 669.681018] which belongs to the cache kmalloc-16 of size 16
> [ 669.692565] The buggy address is located 7 bytes inside of
> [ 669.692565] 16-byte region [c58eae00, c58eae10)
> [ 669.702482] The buggy address belongs to the page:
> [ 669.707268] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 669.707380] flags: 0x200(slab)
> [ 669.707607] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 669.707674] page dumped because: kasan: bad access detected
> [ 669.707713]
> [ 669.709018] Memory state around the buggy address:
> [ 669.713825] c58ead00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.720279] c58ead80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.726734] >c58eae00: 00 fc fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.733120] ^
> [ 669.735941] c58eae80: fb fb fc fc fb fb fc fc fb fb fc fc 00 04 fc fc
> [ 669.742397] c58eaf00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 669.748787]
> ==================================================================
> [ 670.056503] kasan test: kmalloc_oob_memset_4 out-of-bounds in memset4
> [ 670.056640]
> ==================================================================
> [ 670.063818] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_memset_4+0x7c/0x94 [test_kasan]
> [ 670.071743] Write of size 4 at addr c58eae25 by task exe/340
> [ 670.077263]
> [ 670.078847] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 670.078898] Call Trace:
> [ 670.079074] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 670.079279] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 670.079452] [c5649cc0] [c0175700] memset+0x2c/0x4c
> [ 670.079743] [c5649ce0] [c95d4aa4] kmalloc_oob_memset_4+0x7c/0x94
> [test_kasan]
> [ 670.080025] [c5649d00] [c95d5540] kmalloc_tests_init+0x48/0x2d0
> [test_kasan]
> [ 670.080216] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 670.080431] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 670.080635] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 670.080839] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 670.081034] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 670.081201] --- interrupt: c01 at 0xfd6b914
> [ 670.081201] LR = 0x1001364c
> [ 670.081247]
> [ 670.082546] Allocated by task 340:
> [ 670.085978] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 670.086229] kmalloc_oob_memset_4+0x44/0x94 [test_kasan]
> [ 670.086465] kmalloc_tests_init+0x48/0x2d0 [test_kasan]
> [ 670.086611] do_one_initcall+0x40/0x278
> [ 670.086782] do_init_module+0xcc/0x59c
> [ 670.086941] load_module+0x2bc4/0x320c
> [ 670.087101] sys_init_module+0x114/0x138
> [ 670.087246] ret_from_syscall+0x0/0x38
> [ 670.087293]
> [ 670.088563] Freed by task 276:
> [ 670.091652] __kasan_slab_free+0x120/0x22c
> [ 670.091774] kfree+0x74/0x270
> [ 670.091906] single_release+0x54/0x6c
> [ 670.092080] close_pdeo+0x128/0x224
> [ 670.092249] proc_reg_release+0x110/0x128
> [ 670.092383] __fput+0xec/0x2d4
> [ 670.092509] task_work_run+0x13c/0x15c
> [ 670.092678] do_notify_resume+0x3d8/0x438
> [ 670.092828] do_user_signal+0x2c/0x34
> [ 670.092874]
> [ 670.094198] The buggy address belongs to the object at c58eae20
> [ 670.094198] which belongs to the cache kmalloc-16 of size 16
> [ 670.105743] The buggy address is located 5 bytes inside of
> [ 670.105743] 16-byte region [c58eae20, c58eae30)
> [ 670.115660] The buggy address belongs to the page:
> [ 670.120447] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 670.120560] flags: 0x200(slab)
> [ 670.120789] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 670.120858] page dumped because: kasan: bad access detected
> [ 670.120899]
> [ 670.122198] Memory state around the buggy address:
> [ 670.127004] c58ead00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.133458] c58ead80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.139912] >c58eae00: fb fb fc fc 00 fc fc fc fb fb fc fc fb fb fc fc
> [ 670.146302] ^
> [ 670.150152] c58eae80: fb fb fc fc fb fb fc fc fb fb fc fc 00 04 fc fc
> [ 670.156608] c58eaf00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.162998]
> ==================================================================
> [ 670.176210] kasan test: kmalloc_oob_memset_8 out-of-bounds in memset8
> [ 670.176342]
> ==================================================================
> [ 670.183528] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_memset_8+0x7c/0x94 [test_kasan]
> [ 670.191450] Write of size 8 at addr c58eae41 by task exe/340
> [ 670.196972]
> [ 670.198555] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 670.198605] Call Trace:
> [ 670.198779] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 670.198982] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 670.199153] [c5649cc0] [c0175700] memset+0x2c/0x4c
> [ 670.199443] [c5649ce0] [c95d4b38] kmalloc_oob_memset_8+0x7c/0x94
> [test_kasan]
> [ 670.199722] [c5649d00] [c95d5544] kmalloc_tests_init+0x4c/0x2d0
> [test_kasan]
> [ 670.199912] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 670.200125] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 670.200327] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 670.200530] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 670.200723] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 670.200887] --- interrupt: c01 at 0xfd6b914
> [ 670.200887] LR = 0x1001364c
> [ 670.200931]
> [ 670.202255] Allocated by task 340:
> [ 670.205686] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 670.205934] kmalloc_oob_memset_8+0x44/0x94 [test_kasan]
> [ 670.206168] kmalloc_tests_init+0x4c/0x2d0 [test_kasan]
> [ 670.206312] do_one_initcall+0x40/0x278
> [ 670.206480] do_init_module+0xcc/0x59c
> [ 670.206637] load_module+0x2bc4/0x320c
> [ 670.206794] sys_init_module+0x114/0x138
> [ 670.206937] ret_from_syscall+0x0/0x38
> [ 670.206983]
> [ 670.208274] Freed by task 276:
> [ 670.211360] __kasan_slab_free+0x120/0x22c
> [ 670.211479] kfree+0x74/0x270
> [ 670.211611] single_release+0x54/0x6c
> [ 670.211782] close_pdeo+0x128/0x224
> [ 670.211947] proc_reg_release+0x110/0x128
> [ 670.212079] __fput+0xec/0x2d4
> [ 670.212202] task_work_run+0x13c/0x15c
> [ 670.212368] do_notify_resume+0x3d8/0x438
> [ 670.212515] do_user_signal+0x2c/0x34
> [ 670.212561]
> [ 670.213904] The buggy address belongs to the object at c58eae40
> [ 670.213904] which belongs to the cache kmalloc-16 of size 16
> [ 670.225452] The buggy address is located 1 bytes inside of
> [ 670.225452] 16-byte region [c58eae40, c58eae50)
> [ 670.235368] The buggy address belongs to the page:
> [ 670.240155] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 670.240265] flags: 0x200(slab)
> [ 670.240493] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 670.240560] page dumped because: kasan: bad access detected
> [ 670.240599]
> [ 670.241906] Memory state around the buggy address:
> [ 670.246712] c58ead00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.253167] c58ead80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.259621] >c58eae00: fb fb fc fc fb fb fc fc 00 fc fc fc fb fb fc fc
> [ 670.266014] ^
> [ 670.270894] c58eae80: fb fb fc fc fb fb fc fc fb fb fc fc 00 04 fc fc
> [ 670.277349] c58eaf00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.283740]
> ==================================================================
> [ 670.574861] kasan test: kmalloc_oob_memset_16 out-of-bounds in memset16
> [ 670.574999]
> ==================================================================
> [ 670.582162] BUG: KASAN: slab-out-of-bounds in
> kmalloc_oob_memset_16+0x7c/0x94 [test_kasan]
> [ 670.590260] Write of size 16 at addr c58eae81 by task exe/340
> [ 670.595865]
> [ 670.597448] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 670.597499] Call Trace:
> [ 670.597674] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 670.597880] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 670.598053] [c5649cc0] [c0175700] memset+0x2c/0x4c
> [ 670.598344] [c5649ce0] [c95d4bcc] kmalloc_oob_memset_16+0x7c/0x94
> [test_kasan]
> [ 670.598626] [c5649d00] [c95d5548] kmalloc_tests_init+0x50/0x2d0
> [test_kasan]
> [ 670.598816] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 670.599031] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 670.599234] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 670.599439] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 670.599634] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 670.599801] --- interrupt: c01 at 0xfd6b914
> [ 670.599801] LR = 0x1001364c
> [ 670.599847]
> [ 670.601148] Allocated by task 340:
> [ 670.604580] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 670.604834] kmalloc_oob_memset_16+0x44/0x94 [test_kasan]
> [ 670.605070] kmalloc_tests_init+0x50/0x2d0 [test_kasan]
> [ 670.605215] do_one_initcall+0x40/0x278
> [ 670.605385] do_init_module+0xcc/0x59c
> [ 670.605543] load_module+0x2bc4/0x320c
> [ 670.605704] sys_init_module+0x114/0x138
> [ 670.605851] ret_from_syscall+0x0/0x38
> [ 670.605897]
> [ 670.607166] Freed by task 276:
> [ 670.610253] __kasan_slab_free+0x120/0x22c
> [ 670.610374] kfree+0x74/0x270
> [ 670.610506] single_release+0x54/0x6c
> [ 670.610681] close_pdeo+0x128/0x224
> [ 670.610849] proc_reg_release+0x110/0x128
> [ 670.610983] __fput+0xec/0x2d4
> [ 670.611107] task_work_run+0x13c/0x15c
> [ 670.611275] do_notify_resume+0x3d8/0x438
> [ 670.611424] do_user_signal+0x2c/0x34
> [ 670.611471]
> [ 670.612798] The buggy address belongs to the object at c58eae80
> [ 670.612798] which belongs to the cache kmalloc-16 of size 16
> [ 670.624345] The buggy address is located 1 bytes inside of
> [ 670.624345] 16-byte region [c58eae80, c58eae90)
> [ 670.634260] The buggy address belongs to the page:
> [ 670.639048] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 670.639158] flags: 0x200(slab)
> [ 670.639387] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 670.639457] page dumped because: kasan: bad access detected
> [ 670.639497]
> [ 670.640799] Memory state around the buggy address:
> [ 670.645604] c58ead80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.652058] c58eae00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.658513] >c58eae80: 00 00 fc fc fb fb fc fc fb fb fc fc 00 04 fc fc
> [ 670.664901] ^
> [ 670.667978] c58eaf00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.674434] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.680825]
> ==================================================================
> [ 670.693766] kasan test: kmalloc_uaf use-after-free
> [ 670.693923]
> ==================================================================
> [ 670.701091] BUG: KASAN: use-after-free in kmalloc_uaf+0x78/0x94
> [test_kasan]
> [ 670.707899] Write of size 1 at addr c58eaea8 by task exe/340
> [ 670.713422]
> [ 670.715004] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 670.715055] Call Trace:
> [ 670.715229] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 670.715433] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 670.715719] [c5649ce0] [c95d450c] kmalloc_uaf+0x78/0x94 [test_kasan]
> [ 670.715997] [c5649d00] [c95d554c] kmalloc_tests_init+0x54/0x2d0
> [test_kasan]
> [ 670.716187] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 670.716400] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 670.716601] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 670.716804] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 670.716998] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 670.717164] --- interrupt: c01 at 0xfd6b914
> [ 670.717164] LR = 0x1001364c
> [ 670.717209]
> [ 670.718531] Allocated by task 340:
> [ 670.721965] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 670.722210] kmalloc_uaf+0x44/0x94 [test_kasan]
> [ 670.722446] kmalloc_tests_init+0x54/0x2d0 [test_kasan]
> [ 670.722588] do_one_initcall+0x40/0x278
> [ 670.722756] do_init_module+0xcc/0x59c
> [ 670.722912] load_module+0x2bc4/0x320c
> [ 670.723069] sys_init_module+0x114/0x138
> [ 670.723213] ret_from_syscall+0x0/0x38
> [ 670.723260]
> [ 670.724550] Freed by task 340:
> [ 670.727635] __kasan_slab_free+0x120/0x22c
> [ 670.727754] kfree+0x74/0x270
> [ 670.727998] kmalloc_uaf+0x70/0x94 [test_kasan]
> [ 670.728233] kmalloc_tests_init+0x54/0x2d0 [test_kasan]
> [ 670.728375] do_one_initcall+0x40/0x278
> [ 670.728543] do_init_module+0xcc/0x59c
> [ 670.728698] load_module+0x2bc4/0x320c
> [ 670.728855] sys_init_module+0x114/0x138
> [ 670.728998] ret_from_syscall+0x0/0x38
> [ 670.729044]
> [ 670.730356] The buggy address belongs to the object at c58eaea0
> [ 670.730356] which belongs to the cache kmalloc-16 of size 16
> [ 670.741901] The buggy address is located 8 bytes inside of
> [ 670.741901] 16-byte region [c58eaea0, c58eaeb0)
> [ 670.751818] The buggy address belongs to the page:
> [ 670.756605] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 670.756716] flags: 0x200(slab)
> [ 670.756944] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 670.757012] page dumped because: kasan: bad access detected
> [ 670.757052]
> [ 670.758354] Memory state around the buggy address:
> [ 670.763163] c58ead80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.769616] c58eae00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.776070] >c58eae80: fb fb fc fc fb fb fc fc fb fb fc fc 00 04 fc fc
> [ 670.782461] ^
> [ 670.786311] c58eaf00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.792765] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 670.799157]
> ==================================================================
> [ 671.084949] kasan test: kmalloc_uaf_memset use-after-free in memset
> [ 671.085122]
> ==================================================================
> [ 671.092328] BUG: KASAN: use-after-free in
> kmalloc_tests_init+0x58/0x2d0 [test_kasan]
> [ 671.099824] Write of size 33 at addr c534b0c0 by task exe/340
> [ 671.105430]
> [ 671.107012] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 671.107063] Call Trace:
> [ 671.107238] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 671.107443] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 671.107616] [c5649ce0] [c0175700] memset+0x2c/0x4c
> [ 671.107907] [c5649d00] [c95d5550] kmalloc_tests_init+0x58/0x2d0
> [test_kasan]
> [ 671.108098] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 671.108314] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 671.108518] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 671.108724] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 671.108918] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 671.109085] --- interrupt: c01 at 0xfd6b914
> [ 671.109085] LR = 0x1001364c
> [ 671.109132]
> [ 671.110452] Allocated by task 340:
> [ 671.113886] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 671.114137] kmalloc_uaf_memset+0x44/0x90 [test_kasan]
> [ 671.114374] kmalloc_tests_init+0x58/0x2d0 [test_kasan]
> [ 671.114520] do_one_initcall+0x40/0x278
> [ 671.114689] do_init_module+0xcc/0x59c
> [ 671.114846] load_module+0x2bc4/0x320c
> [ 671.115005] sys_init_module+0x114/0x138
> [ 671.115151] ret_from_syscall+0x0/0x38
> [ 671.115198]
> [ 671.116472] Freed by task 340:
> [ 671.119559] __kasan_slab_free+0x120/0x22c
> [ 671.119681] kfree+0x74/0x270
> [ 671.119927] kmalloc_uaf_memset+0x70/0x90 [test_kasan]
> [ 671.120167] kmalloc_tests_init+0x58/0x2d0 [test_kasan]
> [ 671.120312] do_one_initcall+0x40/0x278
> [ 671.120481] do_init_module+0xcc/0x59c
> [ 671.120640] load_module+0x2bc4/0x320c
> [ 671.120801] sys_init_module+0x114/0x138
> [ 671.120945] ret_from_syscall+0x0/0x38
> [ 671.120992]
> [ 671.122276] The buggy address belongs to the object at c534b0c0
> [ 671.122276] which belongs to the cache kmalloc-64 of size 64
> [ 671.133824] The buggy address is located 0 bytes inside of
> [ 671.133824] 64-byte region [c534b0c0, c534b100)
> [ 671.143741] The buggy address belongs to the page:
> [ 671.148527] page:c7fd9a40 count:1 mapcount:0 mapping:c5007c20 index:0x0
> [ 671.148637] flags: 0x200(slab)
> [ 671.148866] raw: 00000200 00000100 00000200 c5007c20 00000000
> 00aa0155 ffffffff 00000001
> [ 671.148935] page dumped because: kasan: bad access detected
> [ 671.148975]
> [ 671.150277] Memory state around the buggy address:
> [ 671.155084] c534af80: fc fc fc fc 00 00 00 00 04 fc fc fc fc fc fc fc
> [ 671.161538] c534b000: 00 00 00 00 00 00 fc fc fc fc fc fc fb fb fb fb
> [ 671.167993] >c534b080: fb fb fb fb fc fc fc fc fb fb fb fb fb fb fb fb
> [ 671.174383] ^
> [ 671.179007] c534b100: fc fc fc fc 00 00 00 00 04 fc fc fc fc fc fc fc
> [ 671.185461] c534b180: 00 00 00 00 04 fc fc fc fc fc fc fc fb fb fb fb
> [ 671.191853]
> ==================================================================
> [ 671.204460] kasan test: kmalloc_uaf2 use-after-free after another kmalloc
> [ 671.204676]
> ==================================================================
> [ 671.211859] BUG: KASAN: use-after-free in kmalloc_uaf2+0x9c/0xd4
> [test_kasan]
> [ 671.218755] Write of size 1 at addr c534b088 by task exe/340
> [ 671.224277]
> [ 671.225860] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 671.225910] Call Trace:
> [ 671.226085] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 671.226288] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 671.226574] [c5649ce0] [c95d45c4] kmalloc_uaf2+0x9c/0xd4 [test_kasan]
> [ 671.226854] [c5649d00] [c95d5554] kmalloc_tests_init+0x5c/0x2d0
> [test_kasan]
> [ 671.227044] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 671.227257] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 671.227458] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 671.227659] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 671.227853] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 671.228018] --- interrupt: c01 at 0xfd6b914
> [ 671.228018] LR = 0x1001364c
> [ 671.228063]
> [ 671.229387] Allocated by task 340:
> [ 671.232819] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 671.233065] kmalloc_uaf2+0x48/0xd4 [test_kasan]
> [ 671.233299] kmalloc_tests_init+0x5c/0x2d0 [test_kasan]
> [ 671.233442] do_one_initcall+0x40/0x278
> [ 671.233609] do_init_module+0xcc/0x59c
> [ 671.233765] load_module+0x2bc4/0x320c
> [ 671.233922] sys_init_module+0x114/0x138
> [ 671.234066] ret_from_syscall+0x0/0x38
> [ 671.234111]
> [ 671.235407] Freed by task 340:
> [ 671.238491] __kasan_slab_free+0x120/0x22c
> [ 671.238609] kfree+0x74/0x270
> [ 671.238851] kmalloc_uaf2+0x78/0xd4 [test_kasan]
> [ 671.239085] kmalloc_tests_init+0x5c/0x2d0 [test_kasan]
> [ 671.239228] do_one_initcall+0x40/0x278
> [ 671.239395] do_init_module+0xcc/0x59c
> [ 671.239550] load_module+0x2bc4/0x320c
> [ 671.239707] sys_init_module+0x114/0x138
> [ 671.239850] ret_from_syscall+0x0/0x38
> [ 671.239897]
> [ 671.241211] The buggy address belongs to the object at c534b060
> [ 671.241211] which belongs to the cache kmalloc-64 of size 64
> [ 671.252758] The buggy address is located 40 bytes inside of
> [ 671.252758] 64-byte region [c534b060, c534b0a0)
> [ 671.262761] The buggy address belongs to the page:
> [ 671.267547] page:c7fd9a40 count:1 mapcount:0 mapping:c5007c20 index:0x0
> [ 671.267657] flags: 0x200(slab)
> [ 671.267885] raw: 00000200 00000100 00000200 c5007c20 00000000
> 00aa0155 ffffffff 00000001
> [ 671.267953] page dumped because: kasan: bad access detected
> [ 671.267993]
> [ 671.269296] Memory state around the buggy address:
> [ 671.274104] c534af80: fc fc fc fc 00 00 00 00 04 fc fc fc fc fc fc fc
> [ 671.280561] c534b000: 00 00 00 00 00 00 fc fc fc fc fc fc fb fb fb fb
> [ 671.287012] >c534b080: fb fb fb fb fc fc fc fc fb fb fb fb fb fb fb fb
> [ 671.293399] ^
> [ 671.296220] c534b100: fc fc fc fc 00 00 00 00 04 fc fc fc fc fc fc fc
> [ 671.302676] c534b180: 00 00 00 00 04 fc fc fc fc fc fc fc fb fb fb fb
> [ 671.309066]
> ==================================================================
> [ 671.597554] kasan test: kmem_cache_oob out-of-bounds in kmem_cache_alloc
> [ 671.597819]
> ==================================================================
> [ 671.604991] BUG: KASAN: slab-out-of-bounds in
> kmem_cache_oob+0x9c/0xd0 [test_kasan]
> [ 671.612398] Read of size 1 at addr c5e180c8 by task exe/340
> [ 671.617834]
> [ 671.619417] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 671.619469] Call Trace:
> [ 671.619645] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 671.619848] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 671.620138] [c5649ce0] [c95d4d10] kmem_cache_oob+0x9c/0xd0 [test_kasan]
> [ 671.620420] [c5649d00] [c95d5558] kmalloc_tests_init+0x60/0x2d0
> [test_kasan]
> [ 671.620611] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 671.620826] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 671.621030] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 671.621234] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 671.621428] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 671.621596] --- interrupt: c01 at 0xfd6b914
> [ 671.621596] LR = 0x1001364c
> [ 671.621642]
> [ 671.622944] Allocated by task 340:
> [ 671.626376] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 671.626504] kmem_cache_alloc+0xf4/0x210
> [ 671.626752] kmem_cache_oob+0x78/0xd0 [test_kasan]
> [ 671.626989] kmalloc_tests_init+0x60/0x2d0 [test_kasan]
> [ 671.627135] do_one_initcall+0x40/0x278
> [ 671.627305] do_init_module+0xcc/0x59c
> [ 671.627463] load_module+0x2bc4/0x320c
> [ 671.627623] sys_init_module+0x114/0x138
> [ 671.627769] ret_from_syscall+0x0/0x38
> [ 671.627816]
> [ 671.629132] Freed by task 0:
> [ 671.631954] (stack is not available)
> [ 671.635476]
> [ 671.637007] The buggy address belongs to the object at c5e18000
> [ 671.637007] which belongs to the cache test_cache of size 200
> [ 671.648642] The buggy address is located 0 bytes to the right of
> [ 671.648642] 200-byte region [c5e18000, c5e180c8)
> [ 671.659156] The buggy address belongs to the page:
> [ 671.663942] page:c7fdf0c0 count:1 mapcount:0 mapping:c540a560 index:0x0
> [ 671.664054] flags: 0x200(slab)
> [ 671.664283] raw: 00000200 00000100 00000200 c540a560 00000000
> 003e007d ffffffff 00000001
> [ 671.664353] page dumped because: kasan: bad access detected
> [ 671.664393]
> [ 671.665694] Memory state around the buggy address:
> [ 671.670501] c5e17f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 671.676954] c5e18000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 671.683409] >c5e18080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
> [ 671.689802] ^
> [ 671.694680] c5e18100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 671.701137] c5e18180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 671.707528]
> ==================================================================
> [ 671.758410]
> =============================================================================
> [ 671.766368] BUG test_cache (Tainted: G B ): Objects
> remaining in test_cache on __kmem_cache_shutdown()
> [ 671.776719]
> -----------------------------------------------------------------------------
> [ 671.776719]
> [ 671.786325] INFO: Slab 0x(ptrval) objects=62 used=1 fp=0x(ptrval)
> flags=0x0200
> [ 671.793514] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 671.793563] Call Trace:
> [ 671.793752] [c5649bf0] [c016ebe0] slab_err+0x98/0xac (unreliable)
> [ 671.793956] [c5649c90] [c01748f4] __kmem_cache_shutdown+0x15c/0x338
> [ 671.794160] [c5649cf0] [c013c3b4] kmem_cache_destroy+0x68/0x114
> [ 671.794463] [c5649d00] [c95d5558] kmalloc_tests_init+0x60/0x2d0
> [test_kasan]
> [ 671.794656] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 671.794868] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 671.795071] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 671.795275] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 671.795468] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 671.795633] --- interrupt: c01 at 0xfd6b914
> [ 671.795633] LR = 0x1001364c
> [ 671.795738] INFO: Object 0x(ptrval) @offset=0
> [ 671.909762] kmem_cache_destroy test_cache: Slab cache still has objects
> [ 671.931546] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 671.931601] Call Trace:
> [ 671.931790] [c5649cf0] [c013c45c] kmem_cache_destroy+0x110/0x114
> (unreliable)
> [ 671.932116] [c5649d00] [c95d5558] kmalloc_tests_init+0x60/0x2d0
> [test_kasan]
> [ 671.932310] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 671.932526] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 671.932730] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 671.932934] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 671.933130] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 671.933300] --- interrupt: c01 at 0xfd6b914
> [ 671.933300] LR = 0x1001364c
> [ 671.952750] kasan test: memcg_accounted_kmem_cache allocate memcg
> accounted object
> [ 672.556766] kasan test: kasan_stack_oob out-of-bounds on stack
> [ 672.556850] kasan test: kasan_global_oob out-of-bounds global variable
> [ 672.556922] kasan test: kasan_alloca_oob_left out-of-bounds to left
> on alloca
> [ 672.556995] kasan test: kasan_alloca_oob_right out-of-bounds to right
> on alloca
> [ 672.557070] kasan test: ksize_unpoisons_memory ksize() unpoisons the
> whole allocated chunk
> [ 672.557200]
> ==================================================================
> [ 672.564395] BUG: KASAN: slab-out-of-bounds in
> ksize_unpoisons_memory+0x8c/0xac [test_kasan]
> [ 672.572578] Write of size 1 at addr c539ab40 by task exe/340
> [ 672.578098]
> [ 672.579682] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 672.579734] Call Trace:
> [ 672.579909] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 672.580114] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 672.580406] [c5649ce0] [c95d5100] ksize_unpoisons_memory+0x8c/0xac
> [test_kasan]
> [ 672.580689] [c5649d00] [c95d5570] kmalloc_tests_init+0x78/0x2d0
> [test_kasan]
> [ 672.580880] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 672.581096] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 672.581299] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 672.581503] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 672.581697] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 672.581864] --- interrupt: c01 at 0xfd6b914
> [ 672.581864] LR = 0x1001364c
> [ 672.581910]
> [ 672.583208] Allocated by task 340:
> [ 672.586642] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 672.586892] ksize_unpoisons_memory+0x44/0xac [test_kasan]
> [ 672.587129] kmalloc_tests_init+0x78/0x2d0 [test_kasan]
> [ 672.587275] do_one_initcall+0x40/0x278
> [ 672.587445] do_init_module+0xcc/0x59c
> [ 672.587602] load_module+0x2bc4/0x320c
> [ 672.587761] sys_init_module+0x114/0x138
> [ 672.587906] ret_from_syscall+0x0/0x38
> [ 672.587953]
> [ 672.589227] Freed by task 338:
> [ 672.592316] __kasan_slab_free+0x120/0x22c
> [ 672.592437] kfree+0x74/0x270
> [ 672.592602] load_elf_binary+0xb0/0x162c
> [ 672.592782] search_binary_handler+0x120/0x374
> [ 672.592950] __do_execve_file+0x834/0xb20
> [ 672.593114] sys_execve+0x40/0x54
> [ 672.593259] ret_from_syscall+0x0/0x38
> [ 672.593307]
> [ 672.594603] The buggy address belongs to the object at c539aac0
> [ 672.594603] which belongs to the cache kmalloc-128 of size 128
> [ 672.606324] The buggy address is located 0 bytes to the right of
> [ 672.606324] 128-byte region [c539aac0, c539ab40)
> [ 672.616840] The buggy address belongs to the page:
> [ 672.621625] page:c7fd9cc0 count:1 mapcount:0 mapping:c5007a80 index:0x0
> [ 672.621738] flags: 0x200(slab)
> [ 672.621967] raw: 00000200 00000100 00000200 c5007a80 00000000
> 005500ab ffffffff 00000001
> [ 672.622038] page dumped because: kasan: bad access detected
> [ 672.622077]
> [ 672.623375] Memory state around the buggy address:
> [ 672.628183] c539aa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 672.634637] c539aa80: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
> [ 672.641090] >c539ab00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
> [ 672.647483] ^
> [ 672.652106] c539ab80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> [ 672.658562] c539ac00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
> [ 672.664951]
> ==================================================================
> [ 672.814421] kasan test: copy_user_test out-of-bounds in copy_from_user()
> [ 672.814499]
> ==================================================================
> [ 672.821643] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x48/0xc4
> [ 672.828089] Write of size 11 at addr c58eb020 by task exe/340
> [ 672.833699]
> [ 672.835280] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 672.835331] Call Trace:
> [ 672.835504] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 672.835708] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 672.835929] [c5649cc0] [c0307be0] _copy_from_user+0x48/0xc4
> [ 672.836230] [c5649ce0] [c95d51b4] copy_user_test+0x94/0x1bc [test_kasan]
> [ 672.836512] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 672.836703] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 672.836917] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 672.837121] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 672.837326] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 672.837522] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 672.837687] --- interrupt: c01 at 0xfd6b914
> [ 672.837687] LR = 0x1001364c
> [ 672.837733]
> [ 672.839067] Allocated by task 340:
> [ 672.842500] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 672.842749] copy_user_test+0x28/0x1bc [test_kasan]
> [ 672.842985] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 672.843131] do_one_initcall+0x40/0x278
> [ 672.843301] do_init_module+0xcc/0x59c
> [ 672.843458] load_module+0x2bc4/0x320c
> [ 672.843619] sys_init_module+0x114/0x138
> [ 672.843764] ret_from_syscall+0x0/0x38
> [ 672.843812]
> [ 672.845085] Freed by task 276:
> [ 672.848173] __kasan_slab_free+0x120/0x22c
> [ 672.848295] kfree+0x74/0x270
> [ 672.848427] single_release+0x54/0x6c
> [ 672.848601] close_pdeo+0x128/0x224
> [ 672.848768] proc_reg_release+0x110/0x128
> [ 672.848903] __fput+0xec/0x2d4
> [ 672.849028] task_work_run+0x13c/0x15c
> [ 672.849197] do_notify_resume+0x3d8/0x438
> [ 672.849346] do_user_signal+0x2c/0x34
> [ 672.849393]
> [ 672.850719] The buggy address belongs to the object at c58eb020
> [ 672.850719] which belongs to the cache kmalloc-16 of size 16
> [ 672.862264] The buggy address is located 0 bytes inside of
> [ 672.862264] 16-byte region [c58eb020, c58eb030)
> [ 672.872182] The buggy address belongs to the page:
> [ 672.876968] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 672.877079] flags: 0x200(slab)
> [ 672.877309] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 672.877377] page dumped because: kasan: bad access detected
> [ 672.877418]
> [ 672.878717] Memory state around the buggy address:
> [ 672.883527] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 672.889979] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 672.896433] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 672.902824] ^
> [ 672.906673] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 672.913129] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 672.919520]
> ==================================================================
> [ 672.932289] kasan test: copy_user_test out-of-bounds in copy_to_user()
> [ 672.932363]
> ==================================================================
> [ 672.939457] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x9c/0xbc
> [ 672.945733] Read of size 11 at addr c58eb020 by task exe/340
> [ 672.951255]
> [ 672.952840] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 672.952890] Call Trace:
> [ 672.953061] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 672.953264] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 672.953480] [c5649cc0] [c0307cf8] _copy_to_user+0x9c/0xbc
> [ 672.953781] [c5649ce0] [c95d51d4] copy_user_test+0xb4/0x1bc [test_kasan]
> [ 672.954060] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 672.954249] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 672.954461] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 672.954662] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 672.954866] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 672.955058] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 672.955224] --- interrupt: c01 at 0xfd6b914
> [ 672.955224] LR = 0x1001364c
> [ 672.955269]
> [ 672.956538] Allocated by task 340:
> [ 672.959969] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 672.960219] copy_user_test+0x28/0x1bc [test_kasan]
> [ 672.960454] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 672.960597] do_one_initcall+0x40/0x278
> [ 672.960766] do_init_module+0xcc/0x59c
> [ 672.960924] load_module+0x2bc4/0x320c
> [ 672.961081] sys_init_module+0x114/0x138
> [ 672.961226] ret_from_syscall+0x0/0x38
> [ 672.961272]
> [ 672.962558] Freed by task 276:
> [ 672.965645] __kasan_slab_free+0x120/0x22c
> [ 672.965764] kfree+0x74/0x270
> [ 672.965896] single_release+0x54/0x6c
> [ 672.966070] close_pdeo+0x128/0x224
> [ 672.966236] proc_reg_release+0x110/0x128
> [ 672.966369] __fput+0xec/0x2d4
> [ 672.966493] task_work_run+0x13c/0x15c
> [ 672.966660] do_notify_resume+0x3d8/0x438
> [ 672.966809] do_user_signal+0x2c/0x34
> [ 672.966855]
> [ 672.968190] The buggy address belongs to the object at c58eb020
> [ 672.968190] which belongs to the cache kmalloc-16 of size 16
> [ 672.979735] The buggy address is located 0 bytes inside of
> [ 672.979735] 16-byte region [c58eb020, c58eb030)
> [ 672.989653] The buggy address belongs to the page:
> [ 672.994439] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 672.994550] flags: 0x200(slab)
> [ 672.994778] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 672.994845] page dumped because: kasan: bad access detected
> [ 672.994885]
> [ 672.996188] Memory state around the buggy address:
> [ 673.000996] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 673.007450] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.013904] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 673.020295] ^
> [ 673.024144] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.030600] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.036990]
> ==================================================================
> [ 673.327457] kasan test: copy_user_test out-of-bounds in
> __copy_from_user()
> [ 673.327537]
> ==================================================================
> [ 673.334723] BUG: KASAN: slab-out-of-bounds in
> copy_user_test+0xd0/0x1bc [test_kasan]
> [ 673.342217] Write of size 11 at addr c58eb020 by task exe/340
> [ 673.347825]
> [ 673.349408] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 673.349459] Call Trace:
> [ 673.349637] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 673.349842] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 673.350130] [c5649ce0] [c95d51f0] copy_user_test+0xd0/0x1bc [test_kasan]
> [ 673.350412] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 673.350605] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 673.350821] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 673.351025] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 673.351231] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 673.351426] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 673.351592] --- interrupt: c01 at 0xfd6b914
> [ 673.351592] LR = 0x1001364c
> [ 673.351638]
> [ 673.352936] Allocated by task 340:
> [ 673.356367] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 673.356619] copy_user_test+0x28/0x1bc [test_kasan]
> [ 673.356855] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 673.357000] do_one_initcall+0x40/0x278
> [ 673.357168] do_init_module+0xcc/0x59c
> [ 673.357324] load_module+0x2bc4/0x320c
> [ 673.357483] sys_init_module+0x114/0x138
> [ 673.357626] ret_from_syscall+0x0/0x38
> [ 673.357673]
> [ 673.358954] Freed by task 276:
> [ 673.362040] __kasan_slab_free+0x120/0x22c
> [ 673.362161] kfree+0x74/0x270
> [ 673.362293] single_release+0x54/0x6c
> [ 673.362465] close_pdeo+0x128/0x224
> [ 673.362632] proc_reg_release+0x110/0x128
> [ 673.362764] __fput+0xec/0x2d4
> [ 673.362888] task_work_run+0x13c/0x15c
> [ 673.363057] do_notify_resume+0x3d8/0x438
> [ 673.363208] do_user_signal+0x2c/0x34
> [ 673.363256]
> [ 673.364587] The buggy address belongs to the object at c58eb020
> [ 673.364587] which belongs to the cache kmalloc-16 of size 16
> [ 673.376132] The buggy address is located 0 bytes inside of
> [ 673.376132] 16-byte region [c58eb020, c58eb030)
> [ 673.386050] The buggy address belongs to the page:
> [ 673.390836] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 673.390947] flags: 0x200(slab)
> [ 673.391175] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 673.391245] page dumped because: kasan: bad access detected
> [ 673.391285]
> [ 673.392585] Memory state around the buggy address:
> [ 673.397393] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 673.403847] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.410301] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 673.416691] ^
> [ 673.420541] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.426997] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.433387]
> ==================================================================
> [ 673.446960] kasan test: copy_user_test out-of-bounds in __copy_to_user()
> [ 673.447031]
> ==================================================================
> [ 673.454258] BUG: KASAN: slab-out-of-bounds in
> copy_user_test+0xfc/0x1bc [test_kasan]
> [ 673.461753] Read of size 11 at addr c58eb020 by task exe/340
> [ 673.467275]
> [ 673.468858] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 673.468909] Call Trace:
> [ 673.469084] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 673.469286] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 673.469573] [c5649ce0] [c95d521c] copy_user_test+0xfc/0x1bc [test_kasan]
> [ 673.469851] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 673.470042] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 673.470256] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 673.470457] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 673.470660] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 673.470853] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 673.471019] --- interrupt: c01 at 0xfd6b914
> [ 673.471019] LR = 0x1001364c
> [ 673.471064]
> [ 673.472385] Allocated by task 340:
> [ 673.475818] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 673.476065] copy_user_test+0x28/0x1bc [test_kasan]
> [ 673.476301] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 673.476444] do_one_initcall+0x40/0x278
> [ 673.476612] do_init_module+0xcc/0x59c
> [ 673.476768] load_module+0x2bc4/0x320c
> [ 673.476925] sys_init_module+0x114/0x138
> [ 673.477067] ret_from_syscall+0x0/0x38
> [ 673.477113]
> [ 673.478403] Freed by task 276:
> [ 673.481490] __kasan_slab_free+0x120/0x22c
> [ 673.481610] kfree+0x74/0x270
> [ 673.481740] single_release+0x54/0x6c
> [ 673.481911] close_pdeo+0x128/0x224
> [ 673.482077] proc_reg_release+0x110/0x128
> [ 673.482209] __fput+0xec/0x2d4
> [ 673.482331] task_work_run+0x13c/0x15c
> [ 673.482500] do_notify_resume+0x3d8/0x438
> [ 673.482648] do_user_signal+0x2c/0x34
> [ 673.482694]
> [ 673.484036] The buggy address belongs to the object at c58eb020
> [ 673.484036] which belongs to the cache kmalloc-16 of size 16
> [ 673.495583] The buggy address is located 0 bytes inside of
> [ 673.495583] 16-byte region [c58eb020, c58eb030)
> [ 673.505500] The buggy address belongs to the page:
> [ 673.510287] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 673.510396] flags: 0x200(slab)
> [ 673.510622] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 673.510690] page dumped because: kasan: bad access detected
> [ 673.510729]
> [ 673.512037] Memory state around the buggy address:
> [ 673.516842] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 673.523297] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.529751] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 673.536142] ^
> [ 673.539991] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.546447] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.552838]
> ==================================================================
> [ 673.835827] kasan test: copy_user_test out-of-bounds in
> __copy_from_user_inatomic()
> [ 673.835905]
> ==================================================================
> [ 673.843082] BUG: KASAN: slab-out-of-bounds in
> copy_user_test+0x128/0x1bc [test_kasan]
> [ 673.850662] Write of size 11 at addr c58eb020 by task exe/340
> [ 673.856272]
> [ 673.857853] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 673.857905] Call Trace:
> [ 673.858080] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 673.858285] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 673.858574] [c5649ce0] [c95d5248] copy_user_test+0x128/0x1bc [test_kasan]
> [ 673.858855] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 673.859046] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 673.859261] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 673.859463] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 673.859668] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 673.859863] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 673.860029] --- interrupt: c01 at 0xfd6b914
> [ 673.860029] LR = 0x1001364c
> [ 673.860075]
> [ 673.861380] Allocated by task 340:
> [ 673.864812] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 673.865062] copy_user_test+0x28/0x1bc [test_kasan]
> [ 673.865299] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 673.865444] do_one_initcall+0x40/0x278
> [ 673.865615] do_init_module+0xcc/0x59c
> [ 673.865773] load_module+0x2bc4/0x320c
> [ 673.865932] sys_init_module+0x114/0x138
> [ 673.866077] ret_from_syscall+0x0/0x38
> [ 673.866123]
> [ 673.867399] Freed by task 276:
> [ 673.870488] __kasan_slab_free+0x120/0x22c
> [ 673.870609] kfree+0x74/0x270
> [ 673.870741] single_release+0x54/0x6c
> [ 673.870913] close_pdeo+0x128/0x224
> [ 673.871080] proc_reg_release+0x110/0x128
> [ 673.871213] __fput+0xec/0x2d4
> [ 673.871337] task_work_run+0x13c/0x15c
> [ 673.871506] do_notify_resume+0x3d8/0x438
> [ 673.871655] do_user_signal+0x2c/0x34
> [ 673.871702]
> [ 673.873032] The buggy address belongs to the object at c58eb020
> [ 673.873032] which belongs to the cache kmalloc-16 of size 16
> [ 673.884578] The buggy address is located 0 bytes inside of
> [ 673.884578] 16-byte region [c58eb020, c58eb030)
> [ 673.894494] The buggy address belongs to the page:
> [ 673.899282] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 673.899395] flags: 0x200(slab)
> [ 673.899625] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 673.899694] page dumped because: kasan: bad access detected
> [ 673.899734]
> [ 673.901033] Memory state around the buggy address:
> [ 673.905838] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 673.912293] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.918748] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 673.925136] ^
> [ 673.928987] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.935442] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 673.941833]
> ==================================================================
> [ 673.954463] kasan test: copy_user_test out-of-bounds in
> __copy_to_user_inatomic()
> [ 673.954535]
> ==================================================================
> [ 673.961759] BUG: KASAN: slab-out-of-bounds in
> copy_user_test+0x154/0x1bc [test_kasan]
> [ 673.969339] Read of size 11 at addr c58eb020 by task exe/340
> [ 673.974860]
> [ 673.976444] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 673.976494] Call Trace:
> [ 673.976668] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 673.976870] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 673.977160] [c5649ce0] [c95d5274] copy_user_test+0x154/0x1bc [test_kasan]
> [ 673.977439] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 673.977630] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 673.977843] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 673.978045] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 673.978249] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 673.978441] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 673.978607] --- interrupt: c01 at 0xfd6b914
> [ 673.978607] LR = 0x1001364c
> [ 673.978651]
> [ 673.979971] Allocated by task 340:
> [ 673.983401] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 673.983650] copy_user_test+0x28/0x1bc [test_kasan]
> [ 673.983885] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 673.984030] do_one_initcall+0x40/0x278
> [ 673.984198] do_init_module+0xcc/0x59c
> [ 673.984354] load_module+0x2bc4/0x320c
> [ 673.984512] sys_init_module+0x114/0x138
> [ 673.984655] ret_from_syscall+0x0/0x38
> [ 673.984701]
> [ 673.985990] Freed by task 276:
> [ 673.989077] __kasan_slab_free+0x120/0x22c
> [ 673.989197] kfree+0x74/0x270
> [ 673.989327] single_release+0x54/0x6c
> [ 673.989499] close_pdeo+0x128/0x224
> [ 673.989664] proc_reg_release+0x110/0x128
> [ 673.989796] __fput+0xec/0x2d4
> [ 673.989918] task_work_run+0x13c/0x15c
> [ 673.990086] do_notify_resume+0x3d8/0x438
> [ 673.990235] do_user_signal+0x2c/0x34
> [ 673.990281]
> [ 673.991622] The buggy address belongs to the object at c58eb020
> [ 673.991622] which belongs to the cache kmalloc-16 of size 16
> [ 674.003168] The buggy address is located 0 bytes inside of
> [ 674.003168] 16-byte region [c58eb020, c58eb030)
> [ 674.013086] The buggy address belongs to the page:
> [ 674.017872] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 674.017982] flags: 0x200(slab)
> [ 674.018210] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 674.018277] page dumped because: kasan: bad access detected
> [ 674.018316]
> [ 674.019622] Memory state around the buggy address:
> [ 674.024429] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 674.030883] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 674.037338] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 674.043727] ^
> [ 674.047578] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 674.054034] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 674.060424]
> ==================================================================
> [ 674.346609] kasan test: copy_user_test out-of-bounds in
> strncpy_from_user()
> [ 674.346689]
> ==================================================================
> [ 674.353778] BUG: KASAN: slab-out-of-bounds in
> strncpy_from_user+0x48/0x240
> [ 674.360487] Write of size 11 at addr c58eb020 by task exe/340
> [ 674.366094]
> [ 674.367678] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 674.367731] Call Trace:
> [ 674.367904] [c5649c40] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 674.368108] [c5649c70] [c0176d34] kasan_report+0xe4/0x168
> [ 674.368323] [c5649cb0] [c03202f8] strncpy_from_user+0x48/0x240
> [ 674.368627] [c5649ce0] [c95d52a4] copy_user_test+0x184/0x1bc [test_kasan]
> [ 674.368908] [c5649d00] [c95d5574] kmalloc_tests_init+0x7c/0x2d0
> [test_kasan]
> [ 674.369100] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 674.369315] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 674.369518] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 674.369724] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 674.369919] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 674.370086] --- interrupt: c01 at 0xfd6b914
> [ 674.370086] LR = 0x1001364c
> [ 674.370132]
> [ 674.371463] Allocated by task 340:
> [ 674.374894] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 674.375146] copy_user_test+0x28/0x1bc [test_kasan]
> [ 674.375383] kmalloc_tests_init+0x7c/0x2d0 [test_kasan]
> [ 674.375527] do_one_initcall+0x40/0x278
> [ 674.375697] do_init_module+0xcc/0x59c
> [ 674.375854] load_module+0x2bc4/0x320c
> [ 674.376015] sys_init_module+0x114/0x138
> [ 674.376162] ret_from_syscall+0x0/0x38
> [ 674.376209]
> [ 674.377481] Freed by task 276:
> [ 674.380568] __kasan_slab_free+0x120/0x22c
> [ 674.380691] kfree+0x74/0x270
> [ 674.380824] single_release+0x54/0x6c
> [ 674.380998] close_pdeo+0x128/0x224
> [ 674.381165] proc_reg_release+0x110/0x128
> [ 674.381299] __fput+0xec/0x2d4
> [ 674.381424] task_work_run+0x13c/0x15c
> [ 674.381592] do_notify_resume+0x3d8/0x438
> [ 674.381743] do_user_signal+0x2c/0x34
> [ 674.381792]
> [ 674.383113] The buggy address belongs to the object at c58eb020
> [ 674.383113] which belongs to the cache kmalloc-16 of size 16
> [ 674.394659] The buggy address is located 0 bytes inside of
> [ 674.394659] 16-byte region [c58eb020, c58eb030)
> [ 674.404577] The buggy address belongs to the page:
> [ 674.409363] page:c7fdc740 count:1 mapcount:0 mapping:c5007dc0 index:0x0
> [ 674.409474] flags: 0x200(slab)
> [ 674.409703] raw: 00000200 00000100 00000200 c5007dc0 00000000
> 02000401 ffffffff 00000001
> [ 674.409772] page dumped because: kasan: bad access detected
> [ 674.409812]
> [ 674.411112] Memory state around the buggy address:
> [ 674.415920] c58eaf00: 00 00 fc fc 00 00 fc fc 00 00 fc fc fb fb fc fc
> [ 674.422374] c58eaf80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 674.428827] >c58eb000: fb fb fc fc 00 02 fc fc fb fb fc fc fb fb fc fc
> [ 674.435218] ^
> [ 674.439067] c58eb080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 674.445524] c58eb100: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
> [ 674.451914]
> ==================================================================
> [ 674.466513] kasan test: use_after_scope_test use-after-scope on int
> [ 674.466592] kasan test: use_after_scope_test use-after-scope on array
> [ 674.470775] kasan test: kmem_cache_double_free double-free on heap object
> [ 674.471059]
> ==================================================================
> [ 674.478286] BUG: KASAN: double-free or invalid-free in
> kmem_cache_double_free+0xac/0xc4 [test_kasan]
> [ 674.487095]
> [ 674.488679] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 674.488730] Call Trace:
> [ 674.488906] [c5649b30] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 674.489118] [c5649b60] [c0176c24] kasan_report_invalid_free+0x48/0x74
> [ 674.489296] [c5649b90] [c0175620] __kasan_slab_free+0x198/0x22c
> [ 674.489467] [c5649cc0] [c0173838] kmem_cache_free+0x64/0x228
> [ 674.489754] [c5649ce0] [c95d4df0] kmem_cache_double_free+0xac/0xc4
> [test_kasan]
> [ 674.490029] [c5649d00] [c95d557c] kmalloc_tests_init+0x84/0x2d0
> [test_kasan]
> [ 674.490219] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 674.490432] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 674.490633] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 674.490837] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 674.491031] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 674.491194] --- interrupt: c01 at 0xfd6b914
> [ 674.491194] LR = 0x1001364c
> [ 674.491239]
> [ 674.492547] Allocated by task 340:
> [ 674.495981] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 674.496108] kmem_cache_alloc+0xf4/0x210
> [ 674.496355] kmem_cache_double_free+0x78/0xc4 [test_kasan]
> [ 674.496584] kmalloc_tests_init+0x84/0x2d0 [test_kasan]
> [ 674.496727] do_one_initcall+0x40/0x278
> [ 674.496893] do_init_module+0xcc/0x59c
> [ 674.497050] load_module+0x2bc4/0x320c
> [ 674.497208] sys_init_module+0x114/0x138
> [ 674.497354] ret_from_syscall+0x0/0x38
> [ 674.497400]
> [ 674.498652] Freed by task 340:
> [ 674.501739] __kasan_slab_free+0x120/0x22c
> [ 674.501866] kmem_cache_free+0x64/0x228
> [ 674.502112] kmem_cache_double_free+0xa0/0xc4 [test_kasan]
> [ 674.502340] kmalloc_tests_init+0x84/0x2d0 [test_kasan]
> [ 674.502483] do_one_initcall+0x40/0x278
> [ 674.502650] do_init_module+0xcc/0x59c
> [ 674.502807] load_module+0x2bc4/0x320c
> [ 674.502966] sys_init_module+0x114/0x138
> [ 674.503112] ret_from_syscall+0x0/0x38
> [ 674.503158]
> [ 674.504460] The buggy address belongs to the object at c5528000
> [ 674.504460] which belongs to the cache test_cache of size 200
> [ 674.516091] The buggy address is located 0 bytes inside of
> [ 674.516091] 200-byte region [c5528000, c55280c8)
> [ 674.526092] The buggy address belongs to the page:
> [ 674.530877] page:c7fda940 count:1 mapcount:0 mapping:c540a700 index:0x0
> [ 674.530988] flags: 0x200(slab)
> [ 674.531216] raw: 00000200 00000100 00000200 c540a700 00000000
> 003e007d ffffffff 00000001
> [ 674.531284] page dumped because: kasan: bad access detected
> [ 674.531323]
> [ 674.532630] Memory state around the buggy address:
> [ 674.537436] c5527f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 674.543890] c5527f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 674.550345] >c5528000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> [ 674.556731] ^
> [ 674.559293] c5528080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
> [ 674.565750] c5528100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 674.572138]
> ==================================================================
> [ 674.880790] kasan test: kmem_cache_invalid_free invalid-free of heap
> object
> [ 674.881044]
> ==================================================================
> [ 674.888197] BUG: KASAN: double-free or invalid-free in
> kmem_cache_invalid_free+0xa0/0xc4 [test_kasan]
> [ 674.897089]
> [ 674.898670] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 674.898722] Call Trace:
> [ 674.898899] [c5649b30] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 674.899113] [c5649b60] [c0176c24] kasan_report_invalid_free+0x48/0x74
> [ 674.899293] [c5649b90] [c0175620] __kasan_slab_free+0x198/0x22c
> [ 674.899467] [c5649cc0] [c0173838] kmem_cache_free+0x64/0x228
> [ 674.899756] [c5649ce0] [c95d4ea8] kmem_cache_invalid_free+0xa0/0xc4
> [test_kasan]
> [ 674.900031] [c5649d00] [c95d5580] kmalloc_tests_init+0x88/0x2d0
> [test_kasan]
> [ 674.900222] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 674.900437] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 674.900639] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 674.900845] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 674.901040] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 674.901206] --- interrupt: c01 at 0xfd6b914
> [ 674.901206] LR = 0x1001364c
> [ 674.901251]
> [ 674.902542] Allocated by task 340:
> [ 674.905975] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 674.906103] kmem_cache_alloc+0xf4/0x210
> [ 674.906351] kmem_cache_invalid_free+0x78/0xc4 [test_kasan]
> [ 674.906584] kmalloc_tests_init+0x88/0x2d0 [test_kasan]
> [ 674.906730] do_one_initcall+0x40/0x278
> [ 674.906899] do_init_module+0xcc/0x59c
> [ 674.907056] load_module+0x2bc4/0x320c
> [ 674.907217] sys_init_module+0x114/0x138
> [ 674.907364] ret_from_syscall+0x0/0x38
> [ 674.907411]
> [ 674.908731] Freed by task 0:
> [ 674.911551] (stack is not available)
> [ 674.915074]
> [ 674.916605] The buggy address belongs to the object at c5528000
> [ 674.916605] which belongs to the cache test_cache of size 200
> [ 674.928237] The buggy address is located 1 bytes inside of
> [ 674.928237] 200-byte region [c5528000, c55280c8)
> [ 674.938237] The buggy address belongs to the page:
> [ 674.943024] page:c7fda940 count:1 mapcount:0 mapping:c540a7d0 index:0x0
> [ 674.943136] flags: 0x200(slab)
> [ 674.943365] raw: 00000200 00000100 00000200 c540a7d0 00000000
> 003e007d ffffffff 00000001
> [ 674.943434] page dumped because: kasan: bad access detected
> [ 674.943475]
> [ 674.944775] Memory state around the buggy address:
> [ 674.949581] c5527f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 674.956036] c5527f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 674.962491] >c5528000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [ 674.968876] ^
> [ 674.971438] c5528080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
> [ 674.977895] c5528100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> [ 674.984285]
> ==================================================================
> [ 675.126818] kasan test: kasan_memchr out-of-bounds in memchr
> [ 675.126994] kasan test: kasan_memcmp out-of-bounds in memcmp
> [ 675.127158] kasan test: kasan_strings use-after-free in strchr
> [ 675.127309]
> ==================================================================
> [ 675.134382] BUG: KASAN: use-after-free in strchr+0x1c/0x80
> [ 675.139762] Read of size 1 at addr c53e8e20 by task exe/340
> [ 675.145200]
> [ 675.146784] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 675.146836] Call Trace:
> [ 675.147010] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 675.147215] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 675.147385] [c5649cc0] [c072ec4c] strchr+0x1c/0x80
> [ 675.147684] [c5649ce0] [c95d5440] kasan_strings+0x60/0x118 [test_kasan]
> [ 675.147966] [c5649d00] [c95d558c] kmalloc_tests_init+0x94/0x2d0
> [test_kasan]
> [ 675.148157] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 675.148372] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 675.148577] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 675.148781] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 675.148976] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 675.149143] --- interrupt: c01 at 0xfd6b914
> [ 675.149143] LR = 0x1001364c
> [ 675.149189]
> [ 675.150483] Allocated by task 340:
> [ 675.153915] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 675.154163] kasan_strings+0x44/0x118 [test_kasan]
> [ 675.154400] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.154545] do_one_initcall+0x40/0x278
> [ 675.154714] do_init_module+0xcc/0x59c
> [ 675.154872] load_module+0x2bc4/0x320c
> [ 675.155033] sys_init_module+0x114/0x138
> [ 675.155179] ret_from_syscall+0x0/0x38
> [ 675.155225]
> [ 675.156501] Freed by task 340:
> [ 675.159587] __kasan_slab_free+0x120/0x22c
> [ 675.159709] kfree+0x74/0x270
> [ 675.159954] kasan_strings+0x54/0x118 [test_kasan]
> [ 675.160191] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.160337] do_one_initcall+0x40/0x278
> [ 675.160508] do_init_module+0xcc/0x59c
> [ 675.160667] load_module+0x2bc4/0x320c
> [ 675.160828] sys_init_module+0x114/0x138
> [ 675.160973] ret_from_syscall+0x0/0x38
> [ 675.161019]
> [ 675.162306] The buggy address belongs to the object at c53e8e10
> [ 675.162306] which belongs to the cache kmalloc-32 of size 32
> [ 675.173853] The buggy address is located 16 bytes inside of
> [ 675.173853] 32-byte region [c53e8e10, c53e8e30)
> [ 675.183856] The buggy address belongs to the page:
> [ 675.188642] page:c7fd9f40 count:1 mapcount:0 mapping:c5007cf0 index:0x0
> [ 675.188753] flags: 0x200(slab)
> [ 675.188982] raw: 00000200 00000100 00000200 c5007cf0 00000000
> 015502ab ffffffff 00000001
> [ 675.189051] page dumped because: kasan: bad access detected
> [ 675.189091]
> [ 675.190392] Memory state around the buggy address:
> [ 675.195199] c53e8d00: 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00 fc fc
> [ 675.201653] c53e8d80: 00 00 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00
> [ 675.208108] >c53e8e00: fc fc fb fb fb fb fc fc 00 00 00 00 fc fc fb fb
> [ 675.214497] ^
> [ 675.218089] c53e8e80: fb fb fc fc fb fb fb fb fc fc fb fb fb fb fc fc
> [ 675.224544] c53e8f00: 00 00 00 04 fc fc fb fb fb fb fc fc fb fb fb fb
> [ 675.230935]
> ==================================================================
> [ 675.383353] kasan test: kasan_strings use-after-free in strrchr
> [ 675.383430]
> ==================================================================
> [ 675.390498] BUG: KASAN: use-after-free in strrchr+0x30/0x64
> [ 675.395964] Read of size 1 at addr c53e8e20 by task exe/340
> [ 675.401403]
> [ 675.402986] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 675.403038] Call Trace:
> [ 675.403212] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 675.403415] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 675.403587] [c5649cc0] [c072ed48] strrchr+0x30/0x64
> [ 675.403888] [c5649ce0] [c95d545c] kasan_strings+0x7c/0x118 [test_kasan]
> [ 675.404170] [c5649d00] [c95d558c] kmalloc_tests_init+0x94/0x2d0
> [test_kasan]
> [ 675.404362] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 675.404576] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 675.404779] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 675.404983] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 675.405177] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 675.405344] --- interrupt: c01 at 0xfd6b914
> [ 675.405344] LR = 0x1001364c
> [ 675.405390]
> [ 675.406684] Allocated by task 340:
> [ 675.410118] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 675.410366] kasan_strings+0x44/0x118 [test_kasan]
> [ 675.410603] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.410750] do_one_initcall+0x40/0x278
> [ 675.410919] do_init_module+0xcc/0x59c
> [ 675.411078] load_module+0x2bc4/0x320c
> [ 675.411238] sys_init_module+0x114/0x138
> [ 675.411384] ret_from_syscall+0x0/0x38
> [ 675.411430]
> [ 675.412704] Freed by task 340:
> [ 675.415789] __kasan_slab_free+0x120/0x22c
> [ 675.415910] kfree+0x74/0x270
> [ 675.416155] kasan_strings+0x54/0x118 [test_kasan]
> [ 675.416391] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.416537] do_one_initcall+0x40/0x278
> [ 675.416706] do_init_module+0xcc/0x59c
> [ 675.416865] load_module+0x2bc4/0x320c
> [ 675.417024] sys_init_module+0x114/0x138
> [ 675.417169] ret_from_syscall+0x0/0x38
> [ 675.417215]
> [ 675.418509] The buggy address belongs to the object at c53e8e10
> [ 675.418509] which belongs to the cache kmalloc-32 of size 32
> [ 675.430055] The buggy address is located 16 bytes inside of
> [ 675.430055] 32-byte region [c53e8e10, c53e8e30)
> [ 675.440057] The buggy address belongs to the page:
> [ 675.444844] page:c7fd9f40 count:1 mapcount:0 mapping:c5007cf0 index:0x0
> [ 675.444955] flags: 0x200(slab)
> [ 675.445184] raw: 00000200 00000100 00000200 c5007cf0 00000000
> 015502ab ffffffff 00000001
> [ 675.445253] page dumped because: kasan: bad access detected
> [ 675.445293]
> [ 675.446595] Memory state around the buggy address:
> [ 675.451401] c53e8d00: 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00 fc fc
> [ 675.457856] c53e8d80: 00 00 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00
> [ 675.464310] >c53e8e00: fc fc fb fb fb fb fc fc 00 00 00 00 fc fc fb fb
> [ 675.470698] ^
> [ 675.474291] c53e8e80: fb fb fc fc fb fb fb fb fc fc fb fb fb fb fc fc
> [ 675.480747] c53e8f00: 00 00 00 04 fc fc fb fb fb fb fc fc fb fb fb fb
> [ 675.487138]
> ==================================================================
> [ 675.500419] kasan test: kasan_strings use-after-free in strcmp
> [ 675.500491]
> ==================================================================
> [ 675.507536] BUG: KASAN: use-after-free in strcmp+0x30/0x90
> [ 675.512918] Read of size 1 at addr c53e8e20 by task exe/340
> [ 675.518358]
> [ 675.519942] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 675.519994] Call Trace:
> [ 675.520167] [c5649c50] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 675.520369] [c5649c80] [c0176d34] kasan_report+0xe4/0x168
> [ 675.520536] [c5649cc0] [c072ebd0] strcmp+0x30/0x90
> [ 675.520833] [c5649ce0] [c95d5480] kasan_strings+0xa0/0x118 [test_kasan]
> [ 675.521113] [c5649d00] [c95d558c] kmalloc_tests_init+0x94/0x2d0
> [test_kasan]
> [ 675.521303] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 675.521514] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 675.521716] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 675.521919] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 675.522111] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 675.522275] --- interrupt: c01 at 0xfd6b914
> [ 675.522275] LR = 0x1001364c
> [ 675.522320]
> [ 675.523640] Allocated by task 340:
> [ 675.527073] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 675.527321] kasan_strings+0x44/0x118 [test_kasan]
> [ 675.527556] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.527699] do_one_initcall+0x40/0x278
> [ 675.527867] do_init_module+0xcc/0x59c
> [ 675.528024] load_module+0x2bc4/0x320c
> [ 675.528182] sys_init_module+0x114/0x138
> [ 675.528327] ret_from_syscall+0x0/0x38
> [ 675.528373]
> [ 675.529658] Freed by task 340:
> [ 675.532745] __kasan_slab_free+0x120/0x22c
> [ 675.532865] kfree+0x74/0x270
> [ 675.533109] kasan_strings+0x54/0x118 [test_kasan]
> [ 675.533343] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.533486] do_one_initcall+0x40/0x278
> [ 675.533654] do_init_module+0xcc/0x59c
> [ 675.533810] load_module+0x2bc4/0x320c
> [ 675.533967] sys_init_module+0x114/0x138
> [ 675.534112] ret_from_syscall+0x0/0x38
> [ 675.534157]
> [ 675.535463] The buggy address belongs to the object at c53e8e10
> [ 675.535463] which belongs to the cache kmalloc-32 of size 32
> [ 675.547010] The buggy address is located 16 bytes inside of
> [ 675.547010] 32-byte region [c53e8e10, c53e8e30)
> [ 675.557012] The buggy address belongs to the page:
> [ 675.561799] page:c7fd9f40 count:1 mapcount:0 mapping:c5007cf0 index:0x0
> [ 675.561909] flags: 0x200(slab)
> [ 675.562137] raw: 00000200 00000100 00000200 c5007cf0 00000000
> 015502ab ffffffff 00000001
> [ 675.562204] page dumped because: kasan: bad access detected
> [ 675.562243]
> [ 675.563549] Memory state around the buggy address:
> [ 675.568356] c53e8d00: 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00 fc fc
> [ 675.574809] c53e8d80: 00 00 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00
> [ 675.581265] >c53e8e00: fc fc fb fb fb fb fc fc 00 00 00 00 fc fc fb fb
> [ 675.587653] ^
> [ 675.591247] c53e8e80: fb fb fc fc fb fb fb fb fc fc fb fb fb fb fc fc
> [ 675.597702] c53e8f00: 00 00 00 04 fc fc fb fb fb fb fc fc fb fb fb fb
> [ 675.604091]
> ==================================================================
> [ 675.894391] kasan test: kasan_strings use-after-free in strncmp
> [ 675.894468] kasan test: kasan_strings use-after-free in strlen
> [ 675.894536] kasan test: kasan_strings use-after-free in strnlen
> [ 675.894600]
> ==================================================================
> [ 675.901698] BUG: KASAN: use-after-free in strnlen+0x24/0x88
> [ 675.907165] Read of size 1 at addr c53e8e20 by task exe/340
> [ 675.912603]
> [ 675.914186] CPU: 0 PID: 340 Comm: exe Tainted: G B
> 5.0.0-rc2-s3k-dev-00559-g88aa407c4bce-dirty #778
> [ 675.914237] Call Trace:
> [ 675.914412] [c5649c70] [c0176998]
> print_address_description+0x6c/0x2b0 (unreliable)
> [ 675.914617] [c5649ca0] [c0176d34] kasan_report+0xe4/0x168
> [ 675.914788] [c5649ce0] [c072eeb4] strnlen+0x24/0x88
> [ 675.915091] [c5649d00] [c95d558c] kmalloc_tests_init+0x94/0x2d0
> [test_kasan]
> [ 675.915283] [c5649d10] [c0003a44] do_one_initcall+0x40/0x278
> [ 675.915497] [c5649d80] [c00b2bc0] do_init_module+0xcc/0x59c
> [ 675.915700] [c5649db0] [c00b1384] load_module+0x2bc4/0x320c
> [ 675.915904] [c5649ec0] [c00b1ae0] sys_init_module+0x114/0x138
> [ 675.916099] [c5649f40] [c001211c] ret_from_syscall+0x0/0x38
> [ 675.916267] --- interrupt: c01 at 0xfd6b914
> [ 675.916267] LR = 0x1001364c
> [ 675.916312]
> [ 675.917626] Allocated by task 340:
> [ 675.921059] __kasan_kmalloc.isra.0+0xc8/0x1b0
> [ 675.921309] kasan_strings+0x44/0x118 [test_kasan]
> [ 675.921546] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.921690] do_one_initcall+0x40/0x278
> [ 675.921858] do_init_module+0xcc/0x59c
> [ 675.922016] load_module+0x2bc4/0x320c
> [ 675.922174] sys_init_module+0x114/0x138
> [ 675.922318] ret_from_syscall+0x0/0x38
> [ 675.922365]
> [ 675.923645] Freed by task 340:
> [ 675.926731] __kasan_slab_free+0x120/0x22c
> [ 675.926851] kfree+0x74/0x270
> [ 675.927097] kasan_strings+0x54/0x118 [test_kasan]
> [ 675.927334] kmalloc_tests_init+0x94/0x2d0 [test_kasan]
> [ 675.927479] do_one_initcall+0x40/0x278
> [ 675.927647] do_init_module+0xcc/0x59c
> [ 675.927804] load_module+0x2bc4/0x320c
> [ 675.927962] sys_init_module+0x114/0x138
> [ 675.928107] ret_from_syscall+0x0/0x38
> [ 675.928154]
> [ 675.929450] The buggy address belongs to the object at c53e8e10
> [ 675.929450] which belongs to the cache kmalloc-32 of size 32
> [ 675.940997] The buggy address is located 16 bytes inside of
> [ 675.940997] 32-byte region [c53e8e10, c53e8e30)
> [ 675.950999] The buggy address belongs to the page:
> [ 675.955786] page:c7fd9f40 count:1 mapcount:0 mapping:c5007cf0 index:0x0
> [ 675.955897] flags: 0x200(slab)
> [ 675.956127] raw: 00000200 00000100 00000200 c5007cf0 00000000
> 015502ab ffffffff 00000001
> [ 675.956196] page dumped because: kasan: bad access detected
> [ 675.956236]
> [ 675.957536] Memory state around the buggy address:
> [ 675.962343] c53e8d00: 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00 fc fc
> [ 675.968796] c53e8d80: 00 00 00 00 fc fc 00 00 00 00 fc fc 00 00 00 00
> [ 675.975251] >c53e8e00: fc fc fb fb fb fb fc fc 00 00 00 00 fc fc fb fb
> [ 675.981640] ^
> [ 675.985233] c53e8e80: fb fb fc fc fb fb fb fb fc fc fb fb fb fb fc fc
> [ 675.991688] c53e8f00: 00 00 00 04 fc fc fb fb fb fb fc fc fb fb fb fb
> [ 675.998080]
> ==================================================================
> [ 721.624809] random: crng init done

Next message: Pintu Agarwal: "Re: Need help: how to locate failure from irq_chip subsystem"
Previous message: Popa, Stefan Serban: "Re: [PATCH v2 1/2] iio: adc: Add AD7768-1 ADC basic support"
In reply to: Christophe Leroy: "Re: [PATCH v3 3/3] powerpc/32: Add KASAN support"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]