[syzbot] [block?] general protection fault in bioset_exit (2)

From: syzbot
Date: Sun Feb 02 2025 - 13:04:31 EST

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Hello,

syzbot found the following issue on:

HEAD commit: 69e858e0b8b2 Merge tag 'uml-for-linus-6.14-rc1' of git://g..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11014b24580000
kernel config: https://syzkaller.appspot.com/x/.config?x=d033b14aeef39158
dashboard link: https://syzkaller.appspot.com/bug?extid=76f13f2acac84df26aae
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-69e858e0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a53b888c1f3f/vmlinux-69e858e0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6b5e17edafc0/bzImage-69e858e0.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+76f13f2acac84df26aae@xxxxxxxxxxxxxxxxxxxxxxxxx

bucket 0:19 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:20 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:20 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:21 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:21 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:22 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:22 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:23 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:23 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:24 gen 0 has wrong data_type: got free, should be journal, fixing
bucket 0:24 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:26 gen 0 has wrong data_type: got free, should be btree, fixing
bucket 0:26 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:27 gen 0 has wrong data_type: got btree, should be need_discard, fixing
bucket 0:27 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing
bucket 0:29 gen 0 has wrong data_type: got free, should be btree, fixing
bucket 0:29 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:32 gen 0 has wrong data_type: got sb, should be btree, fixing
bucket 0:34 gen 0 has wrong data_type: got user, should be need_discard, fixing
bucket 0:34 gen 0 data type need_discard has wrong dirty_sectors: got 16, should be 0, fixing
bucket 0:35 gen 0 has wrong data_type: got free, should be btree, fixing
bucket 0:35 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:38 gen 0 has wrong data_type: got free, should be btree, fixing
bucket 0:38 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:41 gen 0 has wrong data_type: got free, should be btree, fixing
bucket 0:41 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:120 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:120 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:121 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:121 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:122 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:122 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:123 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:123 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:124 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:124 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:125 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:125 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:126 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:126 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
bucket 0:127 gen 0 has wrong data_type: got free, should be sb, fixing
bucket 0:127 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
done
bcachefs (loop0): going read-write
bcachefs (loop0): journal_replay...
bcachefs (loop0): bch2_journal_replay(): error erofs_journal_err
bcachefs (loop0): bch2_fs_recovery(): error erofs_journal_err
bcachefs (loop0): bch2_fs_start(): error starting filesystem erofs_journal_err
bcachefs (loop0): shutting down
bcachefs (loop0): shutdown complete
Oops: general protection fault, probably for non-canonical address 0x1000000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:qlist_move_cache+0x6a/0x140 mm/kasan/quarantine.c:302
Code: 00 00 00 00 48 8d 47 08 48 89 44 24 18 48 8d 47 10 48 89 44 24 10 48 8d 46 08 48 89 44 24 08 48 8d 46 10 48 89 04 24 4c 89 eb <4d> 8b 6d 00 48 89 df e8 aa 51 47 ff 48 c1 e8 06 48 83 e0 c0 48 8b
RSP: 0018:ffffc9000d3777b0 EFLAGS: 00010006
RAX: 0000000000000140 RBX: 0001000000000000 RCX: ffffffff9a463b08
RDX: ffffffff9a463b10 RSI: ffff888042616c80 RDI: 00000000000cf2c9
RBP: ffffea0000000000 R08: ffffffff816d68ec R09: fffff52001a6eedc
R10: dffffc0000000000 R11: fffff52001a6eedc R12: ffffffff9a463b00
R13: 0001000000000000 R14: ffffc9000d377808 R15: ffff888055273500
FS: 00007f1cd9cce6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c19933f0c8 CR3: 0000000040e1a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
kasan_quarantine_remove_cache+0x10b/0x180 mm/kasan/quarantine.c:370
kmem_cache_destroy+0x6e/0x160 mm/slab_common.c:528
bio_put_slab block/bio.c:155 [inline]
bioset_exit+0x54e/0x650 block/bio.c:1662
bch2_fs_fs_io_direct_exit+0x19/0x30 fs/bcachefs/fs-io-direct.c:676
__bch2_fs_free fs/bcachefs/super.c:547 [inline]
bch2_fs_release+0x1a9/0x7b0 fs/bcachefs/super.c:613
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x22f/0x480 lib/kobject.c:737
bch2_fs_get_tree+0xdc4/0x1740 fs/bcachefs/fs.c:2299
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1cd8d8e54a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1cd9ccde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1cd9ccdef0 RCX: 00007f1cd8d8e54a
RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007f1cd9ccdeb0
RBP: 0000000020000000 R08: 00007f1cd9ccdef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000040
R13: 00007f1cd9ccdeb0 R14: 000000000000593f R15: 0000000020000380
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_move_cache+0x6a/0x140 mm/kasan/quarantine.c:302
Code: 00 00 00 00 48 8d 47 08 48 89 44 24 18 48 8d 47 10 48 89 44 24 10 48 8d 46 08 48 89 44 24 08 48 8d 46 10 48 89 04 24 4c 89 eb <4d> 8b 6d 00 48 89 df e8 aa 51 47 ff 48 c1 e8 06 48 83 e0 c0 48 8b
RSP: 0018:ffffc9000d3777b0 EFLAGS: 00010006
RAX: 0000000000000140 RBX: 0001000000000000 RCX: ffffffff9a463b08
RDX: ffffffff9a463b10 RSI: ffff888042616c80 RDI: 00000000000cf2c9
RBP: ffffea0000000000 R08: ffffffff816d68ec R09: fffff52001a6eedc
R10: dffffc0000000000 R11: fffff52001a6eedc R12: ffffffff9a463b00
R13: 0001000000000000 R14: ffffc9000d377808 R15: ffff888055273500
FS: 00007f1cd9cce6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c19933f0c8 CR3: 0000000040e1a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 48 8d 47 08 lea 0x8(%rdi),%rax
8: 48 89 44 24 18 mov %rax,0x18(%rsp)
d: 48 8d 47 10 lea 0x10(%rdi),%rax
11: 48 89 44 24 10 mov %rax,0x10(%rsp)
16: 48 8d 46 08 lea 0x8(%rsi),%rax
1a: 48 89 44 24 08 mov %rax,0x8(%rsp)
1f: 48 8d 46 10 lea 0x10(%rsi),%rax
23: 48 89 04 24 mov %rax,(%rsp)
27: 4c 89 eb mov %r13,%rbx
* 2a: 4d 8b 6d 00 mov 0x0(%r13),%r13 <-- trapping instruction
2e: 48 89 df mov %rbx,%rdi
31: e8 aa 51 47 ff call 0xff4751e0
36: 48 c1 e8 06 shr $0x6,%rax
3a: 48 83 e0 c0 and $0xffffffffffffffc0,%rax
3e: 48 rex.W
3f: 8b .byte 0x8b

---
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Next message: Michael Cree: "Re: [PATCH v2 0/4] alpha: stack fixes"
Previous message: syzbot: "[syzbot] [mm?] [bcachefs?] UBSAN: shift-out-of-bounds in filemap_get_entry"
Next in thread: Jens Axboe: "Re: [syzbot] [block?] general protection fault in bioset_exit (2)"
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