Re: [syzbot] [ntfs3?] WARNING in indx_insert_into_buffer

From: syzbot
Date: Sat Nov 25 2023 - 07:58:09 EST

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In reply to: syzbot: "Re: [syzbot] [ntfs3?] WARNING in indx_insert_into_buffer"
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Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
KASAN: invalid-free in indx_insert_into_buffer

R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000000b R14: 00007f1a99f9bf80 R15: 00007ffdd50705e8
</TASK>
==================================================================
BUG: KASAN: invalid-free in indx_insert_into_buffer.isra.0+0xec4/0x11f0 fs/ntfs3/index.c:1912
Free of addr ffff88801c22c018 by task syz-executor.0/5511

CPU: 0 PID: 5511 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller-00344-g037266a5f723-dirty #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report_invalid_free+0xab/0xd0 mm/kasan/report.c:550
____kasan_slab_free+0x17d/0x190 mm/kasan/common.c:216
kasan_slab_free include/linux/kasan.h:164 [inline]
__cache_free mm/slab.c:3370 [inline]
__do_kmem_cache_free mm/slab.c:3557 [inline]
__kmem_cache_free+0xcc/0x3d0 mm/slab.c:3564
indx_insert_into_buffer.isra.0+0xec4/0x11f0 fs/ntfs3/index.c:1912
indx_insert_entry+0x1a5/0x460 fs/ntfs3/index.c:1984
ni_add_name+0x4d9/0x820 fs/ntfs3/frecord.c:3055
ni_rename+0xa1/0x1a0 fs/ntfs3/frecord.c:3087
ntfs_rename+0x91f/0xec0 fs/ntfs3/namei.c:322
vfs_rename+0x13e0/0x1c30 fs/namei.c:4844
do_renameat2+0xc3c/0xdc0 fs/namei.c:4996
__do_sys_rename fs/namei.c:5042 [inline]
__se_sys_rename fs/namei.c:5040 [inline]
__x64_sys_rename+0x81/0xa0 fs/namei.c:5040
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1a99e7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1a9ab210c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f1a99f9bf80 RCX: 00007f1a99e7cae9
RDX: 0000000000000000 RSI: 0000000020000a40 RDI: 0000000020000300
RBP: 00007f1a9ab21120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000000b R14: 00007f1a99f9bf80 R15: 00007ffdd50705e8
</TASK>

Allocated by task 5511:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0xa3/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:198 [inline]
__do_kmalloc_node mm/slab_common.c:1007 [inline]
__kmalloc+0x59/0x90 mm/slab_common.c:1020
kmalloc include/linux/slab.h:604 [inline]
indx_read+0x4f1/0xcd0 fs/ntfs3/index.c:1059
indx_find+0x4a9/0x980 fs/ntfs3/index.c:1181
indx_insert_entry+0x376/0x460 fs/ntfs3/index.c:1961
ni_add_name+0x4d9/0x820 fs/ntfs3/frecord.c:3055
ni_rename+0xa1/0x1a0 fs/ntfs3/frecord.c:3087
ntfs_rename+0x91f/0xec0 fs/ntfs3/namei.c:322
vfs_rename+0x13e0/0x1c30 fs/namei.c:4844
do_renameat2+0xc3c/0xdc0 fs/namei.c:4996
__do_sys_rename fs/namei.c:5042 [inline]
__se_sys_rename fs/namei.c:5040 [inline]
__x64_sys_rename+0x81/0xa0 fs/namei.c:5040
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b

The buggy address belongs to the object at ffff88801c22c000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 24 bytes inside of
4096-byte region [ffff88801c22c000, ffff88801c22d000)

The buggy address belongs to the physical page:
page:ffffea0000708b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c22c
head:ffffea0000708b00 order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0x1()
raw: 00fff00000000840 ffff888013040900 ffffea0000b89390 ffffea0000701e90
raw: 0000000000000000 ffff88801c22c000 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0x342040(__GFP_IO|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 5318, tgid 5318 (dhcpcd-run-hook), ts 63150203847, free_ts 63102034837
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1537
prep_new_page mm/page_alloc.c:1544 [inline]
get_page_from_freelist+0xa25/0x36d0 mm/page_alloc.c:3312
__alloc_pages+0x22e/0x2420 mm/page_alloc.c:4568
__alloc_pages_node include/linux/gfp.h:238 [inline]
kmem_getpages mm/slab.c:1356 [inline]
cache_grow_begin+0x99/0x3a0 mm/slab.c:2550
cache_alloc_refill+0x295/0x3b0 mm/slab.c:2923
____cache_alloc mm/slab.c:2999 [inline]
____cache_alloc mm/slab.c:2982 [inline]
__do_cache_alloc mm/slab.c:3182 [inline]
slab_alloc_node mm/slab.c:3230 [inline]
__kmem_cache_alloc_node+0x3ba/0x460 mm/slab.c:3521
kmalloc_trace+0x25/0x60 mm/slab_common.c:1098
kmalloc include/linux/slab.h:600 [inline]
kzalloc include/linux/slab.h:721 [inline]
tomoyo_environ security/tomoyo/domain.c:633 [inline]
tomoyo_find_next_domain+0xc08/0x2020 security/tomoyo/domain.c:878
tomoyo_bprm_check_security security/tomoyo/tomoyo.c:101 [inline]
tomoyo_bprm_check_security+0x12b/0x1d0 security/tomoyo/tomoyo.c:91
security_bprm_check+0x6a/0xe0 security/security.c:1103
search_binary_handler fs/exec.c:1725 [inline]
exec_binprm fs/exec.c:1779 [inline]
bprm_execve fs/exec.c:1854 [inline]
bprm_execve+0x73a/0x1a90 fs/exec.c:1810
do_execveat_common.isra.0+0x5d3/0x740 fs/exec.c:1962
do_execve fs/exec.c:2036 [inline]
__do_sys_execve fs/exec.c:2112 [inline]
__se_sys_execve fs/exec.c:2107 [inline]
__x64_sys_execve+0x8c/0xb0 fs/exec.c:2107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1137 [inline]
free_unref_page_prepare+0x4fa/0xaa0 mm/page_alloc.c:2347
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2487
slab_destroy mm/slab.c:1608 [inline]
slabs_destroy+0x85/0xc0 mm/slab.c:1628
cache_flusharray mm/slab.c:3341 [inline]
___cache_free+0x2b7/0x420 mm/slab.c:3404
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x4c/0x1b0 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:763 [inline]
slab_alloc_node mm/slab.c:3237 [inline]
slab_alloc mm/slab.c:3246 [inline]
__kmem_cache_alloc_lru mm/slab.c:3423 [inline]
kmem_cache_alloc+0x159/0x360 mm/slab.c:3432
getname_flags.part.0+0x50/0x4e0 fs/namei.c:140
getname_flags+0x9c/0xf0 include/linux/audit.h:321
vfs_fstatat+0x9a/0x140 fs/stat.c:294
__do_sys_newfstatat+0x98/0x110 fs/stat.c:459
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b

Memory state around the buggy address:
ffff88801c22bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88801c22bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88801c22c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^
ffff88801c22c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88801c22c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================

Tested on:

commit: 037266a5 Merge tag 'scsi-fixes' of git://git.kernel.or..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=12120b44e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=af04b7c4d36966d8
dashboard link: https://syzkaller.appspot.com/bug?extid=c5b339d16ffa61fd512d
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=106773cce80000

Next message: Konrad Dybcio: "[PATCH 1/2] arm64: dts: qcom: sm6115: Add UART3"
Previous message: Konrad Dybcio: "Re: [PATCH v4 8/8] arm64: dts: qcom: sm8650-qrd: add interconnect dependent device nodes"
In reply to: syzbot: "Re: [syzbot] [ntfs3?] WARNING in indx_insert_into_buffer"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]