[moderation] [xfs?] BUG: corrupted list in xlog_cil_commit
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syzbot
May 23, 2024, 5:43:31 PMMay 23
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 8f6a15f095a6 Merge tag 'cocci-for-6.10' of git://git.kerne..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=176e6934980000
kernel config: https://syzkaller.appspot.com/x/.config?x=cec8dc951d3cca13
dashboard link: https://syzkaller.appspot.com/bug?extid=7527f48d80f4c13759f2
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386
CC: [chanda...@oracle.com djw...@kernel.org linux-...@vger.kernel.org linu...@vger.kernel.org]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-8f6a15f0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e76220459de3/vmlinux-8f6a15f0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/584cb4587029/bzImage-8f6a15f0.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7527f4...@syzkaller.appspotmail.com
XFS (loop2): Unmounting Filesystem a2f82aab-77f8-4286-afd4-a8f747a74bab
list_add corruption. prev->next should be next (ffffe8ffad1522f8), but was ffffe8ffad1522f9. (prev=ffffe8ffad1522f8).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:32!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 5773 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32
Code: e8 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b0 8f 8b e8 e8 fb e8 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b1 8f 8b 48 89 de e8 d3 fb e8 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b1 8f 8b e8 bb fb e8
RSP: 0018:ffffc90007187960 EFLAGS: 00010282
RAX: 0000000000000075 RBX: ffffe8ffad1522f8 RCX: ffffffff816f3589
RDX: 0000000000000000 RSI: ffffffff816fc106 RDI: 0000000000000005
RBP: ffff88805f2f8308 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffffe8ffad1522f8
R13: ffff88805f2f82a0 R14: ffff88805f2f8308 R15: ffffe8ffad1522e0
FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000565ae400
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7fa9ea0 CR3: 0000000050c3c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__list_add_valid include/linux/list.h:88 [inline]
__list_add include/linux/list.h:150 [inline]
list_add_tail include/linux/list.h:183 [inline]
xlog_cil_insert_items fs/xfs/xfs_log_cil.c:675 [inline]
xlog_cil_commit+0x125b/0x32d0 fs/xfs/xfs_log_cil.c:1593
__xfs_trans_commit+0x346/0xe90 fs/xfs/xfs_trans.c:1020
xfs_sync_sb+0x112/0x160 fs/xfs/libxfs/xfs_sb.c:1080
xfs_log_cover fs/xfs/xfs_log.c:1266 [inline]
xfs_log_quiesce+0x1fa/0x2c0 fs/xfs/xfs_log.c:1075
xfs_log_clean fs/xfs/xfs_log.c:1082 [inline]
xfs_log_unmount+0x22/0x270 fs/xfs/xfs_log.c:1097
xfs_unmountfs+0x10d/0x250 fs/xfs/xfs_mount.c:1120
xfs_fs_put_super+0x61/0x110 fs/xfs/xfs_super.c:1145
generic_shutdown_super+0x159/0x3d0 fs/super.c:642
kill_block_super+0x3b/0x90 fs/super.c:1676
xfs_kill_sb+0x15/0x50 fs/xfs/xfs_super.c:2045
deactivate_locked_super+0xbe/0x1a0 fs/super.c:473
deactivate_super+0xde/0x100 fs/super.c:506
cleanup_mnt+0x222/0x450 fs/namespace.c:1267
task_work_run+0x14e/0x250 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218
__do_fast_syscall_32+0x82/0x120 arch/x86/entry/common.c:389
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7315579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000ff8abb08 EFLAGS: 00000292 ORIG_RAX: 0000000000000034
RAX: 0000000000000000 RBX: 00000000ff8abbb0 RCX: 0000000000000009
RDX: 00000000f746bff4 RSI: 00000000f73bc361 RDI: 00000000ff8acc54
RBP: 00000000ff8abbb0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32
Code: e8 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b0 8f 8b e8 e8 fb e8 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b1 8f 8b 48 89 de e8 d3 fb e8 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b1 8f 8b e8 bb fb e8
RSP: 0018:ffffc90007187960 EFLAGS: 00010282
RAX: 0000000000000075 RBX: ffffe8ffad1522f8 RCX: ffffffff816f3589
RDX: 0000000000000000 RSI: ffffffff816fc106 RDI: 0000000000000005
RBP: ffff88805f2f8308 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffffe8ffad1522f8
R13: ffff88805f2f82a0 R14: ffff88805f2f8308 R15: ffffe8ffad1522e0
FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000565ae400
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7fa9ea0 CR3: 0000000050c3c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 8f6a15f095a6 Merge tag 'cocci-for-6.10' of git://git.kerne..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=176e6934980000
kernel config: https://syzkaller.appspot.com/x/.config?x=cec8dc951d3cca13
dashboard link: https://syzkaller.appspot.com/bug?extid=7527f48d80f4c13759f2
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386
CC: [chanda...@oracle.com djw...@kernel.org linux-...@vger.kernel.org linu...@vger.kernel.org]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-8f6a15f0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e76220459de3/vmlinux-8f6a15f0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/584cb4587029/bzImage-8f6a15f0.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7527f4...@syzkaller.appspotmail.com
XFS (loop2): Unmounting Filesystem a2f82aab-77f8-4286-afd4-a8f747a74bab
list_add corruption. prev->next should be next (ffffe8ffad1522f8), but was ffffe8ffad1522f9. (prev=ffffe8ffad1522f8).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:32!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 5773 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32
Code: e8 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b0 8f 8b e8 e8 fb e8 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b1 8f 8b 48 89 de e8 d3 fb e8 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b1 8f 8b e8 bb fb e8
RSP: 0018:ffffc90007187960 EFLAGS: 00010282
RAX: 0000000000000075 RBX: ffffe8ffad1522f8 RCX: ffffffff816f3589
RDX: 0000000000000000 RSI: ffffffff816fc106 RDI: 0000000000000005
RBP: ffff88805f2f8308 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffffe8ffad1522f8
R13: ffff88805f2f82a0 R14: ffff88805f2f8308 R15: ffffe8ffad1522e0
FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000565ae400
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7fa9ea0 CR3: 0000000050c3c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__list_add_valid include/linux/list.h:88 [inline]
__list_add include/linux/list.h:150 [inline]
list_add_tail include/linux/list.h:183 [inline]
xlog_cil_insert_items fs/xfs/xfs_log_cil.c:675 [inline]
xlog_cil_commit+0x125b/0x32d0 fs/xfs/xfs_log_cil.c:1593
__xfs_trans_commit+0x346/0xe90 fs/xfs/xfs_trans.c:1020
xfs_sync_sb+0x112/0x160 fs/xfs/libxfs/xfs_sb.c:1080
xfs_log_cover fs/xfs/xfs_log.c:1266 [inline]
xfs_log_quiesce+0x1fa/0x2c0 fs/xfs/xfs_log.c:1075
xfs_log_clean fs/xfs/xfs_log.c:1082 [inline]
xfs_log_unmount+0x22/0x270 fs/xfs/xfs_log.c:1097
xfs_unmountfs+0x10d/0x250 fs/xfs/xfs_mount.c:1120
xfs_fs_put_super+0x61/0x110 fs/xfs/xfs_super.c:1145
generic_shutdown_super+0x159/0x3d0 fs/super.c:642
kill_block_super+0x3b/0x90 fs/super.c:1676
xfs_kill_sb+0x15/0x50 fs/xfs/xfs_super.c:2045
deactivate_locked_super+0xbe/0x1a0 fs/super.c:473
deactivate_super+0xde/0x100 fs/super.c:506
cleanup_mnt+0x222/0x450 fs/namespace.c:1267
task_work_run+0x14e/0x250 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218
__do_fast_syscall_32+0x82/0x120 arch/x86/entry/common.c:389
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7315579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000ff8abb08 EFLAGS: 00000292 ORIG_RAX: 0000000000000034
RAX: 0000000000000000 RBX: 00000000ff8abbb0 RCX: 0000000000000009
RDX: 00000000f746bff4 RSI: 00000000f73bc361 RDI: 00000000ff8acc54
RBP: 00000000ff8abbb0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32
Code: e8 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b0 8f 8b e8 e8 fb e8 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b1 8f 8b 48 89 de e8 d3 fb e8 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b1 8f 8b e8 bb fb e8
RSP: 0018:ffffc90007187960 EFLAGS: 00010282
RAX: 0000000000000075 RBX: ffffe8ffad1522f8 RCX: ffffffff816f3589
RDX: 0000000000000000 RSI: ffffffff816fc106 RDI: 0000000000000005
RBP: ffff88805f2f8308 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffffe8ffad1522f8
R13: ffff88805f2f82a0 R14: ffff88805f2f8308 R15: ffffe8ffad1522e0
FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000565ae400
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7fa9ea0 CR3: 0000000050c3c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Jun 1, 2024, 7:12:24 AMJun 1
to syzkaller-upst...@googlegroups.com
Sending this report to the next reporting stage.
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