syzbot


kernel BUG in gfs2_withdraw

Status: upstream: reported C repro on 2024/09/02 08:54
Subsystems: gfs2
[Documentation on labels]
Reported-by: syzbot+ed42f17ebcb58526788c@syzkaller.appspotmail.com
First crash: 290d, last: 9m
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: kernel BUG in gfs2_lm_withdraw (log)
Repro: C syz .config
  
Discussions (10)
Title Replies (including bot) Last reply
[syzbot] Monthly gfs2 report (Jun 2025) 0 (1) 2025/06/13 12:25
[syzbot] Monthly gfs2 report (May 2025) 0 (1) 2025/05/12 13:34
[syzbot] Monthly gfs2 report (Apr 2025) 0 (1) 2025/04/09 07:11
[syzbot] Monthly gfs2 report (Mar 2025) 0 (1) 2025/03/08 22:16
[syzbot] Monthly gfs2 report (Feb 2025) 0 (1) 2025/02/05 12:43
[syzbot] Monthly gfs2 report (Jan 2025) 0 (1) 2025/01/06 10:01
[syzbot] Monthly gfs2 report (Dec 2024) 0 (1) 2024/12/05 09:04
[syzbot] Monthly gfs2 report (Nov 2024) 0 (1) 2024/11/04 11:34
[syzbot] Monthly gfs2 report (Oct 2024) 0 (1) 2024/10/03 09:03
[syzbot] [gfs2?] kernel BUG in gfs2_withdraw 0 (1) 2024/09/02 08:54
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in gfs2_withdraw origin:upstream C 62 4d01h 264d 0/3 upstream: reported C repro on 2024/09/24 07:11
linux-6.1 kernel BUG in gfs2_withdraw origin:upstream C 41 13d 195d 0/3 upstream: reported C repro on 2024/12/01 20:36

Sample crash report:
gfs2: fsid=_){&.s: fatal: filesystem consistency error - inode = 1 19, function = gfs2_jdesc_check, file = fs/gfs2/super.c, line = 119
gfs2: fsid=_){&.s: G:  s:SH n:2/13 f:aqob t:SH d:EX/0 a:0 v:0 r:2 m:20 p:3
gfs2: fsid=_){&.s:  H: s:SH f:eEcH e:0 p:5212 [syz-executor117] init_journal+0x1881/0x2420 fs/gfs2/ops_fstype.c:806
gfs2: fsid=_){&.s:  I: n:1/19 t:8 f:0x00 d:0x00000200 s:8388608 p:0
gfs2: fsid=_){&.s: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/util.c:340!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 5212 Comm: syz-executor117 Not tainted 6.11.0-rc5-syzkaller-00079-g928f79a188aa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:gfs2_withdraw+0x1459/0x1460 fs/gfs2/util.c:340
Code: ff ff 48 8b 4c 24 10 80 e1 07 80 c1 03 38 c1 0f 8c 51 fd ff ff 48 8b 7c 24 10 e8 02 2c 14 fe e9 42 fd ff ff e8 48 0f b0 fd 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900033373c0 EFLAGS: 00010293
RAX: ffffffff83e37c58 RBX: 0000000000000004 RCX: ffff88807b0a0000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc90003337560 R08: ffffffff83e36aae R09: 1ffff92000666e18
R10: dffffc0000000000 R11: fffff52000666e19 R12: 1ffff11005354815
R13: 1ffff92000666e8c R14: dffffc0000000000 R15: ffff888029aa4340
FS:  0000555569397380(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005fdeb8 CR3: 000000007ae7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_jdesc_check+0x17b/0x2e0
 check_journal_clean+0x162/0x360 fs/gfs2/util.c:69
 init_journal+0x1881/0x2420 fs/gfs2/ops_fstype.c:806
 init_inodes+0xdc/0x320 fs/gfs2/ops_fstype.c:864
 gfs2_fill_super+0x1c18/0x2500 fs/gfs2/ops_fstype.c:1249
 get_tree_bdev+0x3f7/0x570 fs/super.c:1635
 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329
 vfs_get_tree+0x90/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3472
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
 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: 0033:0x7f9b18ad2b3a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd7482ab88 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffd7482aba0 RCX: 00007f9b18ad2b3a
RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007ffd7482aba0
RBP: 0000000000000004 R08: 00007ffd7482abe0 R09: 0000000000012613
R10: 0000000002800002 R11: 0000000000000282 R12: 0000000002800002
R13: 00007ffd7482abe0 R14: 0000000000000003 R15: 0000000001000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_withdraw+0x1459/0x1460 fs/gfs2/util.c:340
Code: ff ff 48 8b 4c 24 10 80 e1 07 80 c1 03 38 c1 0f 8c 51 fd ff ff 48 8b 7c 24 10 e8 02 2c 14 fe e9 42 fd ff ff e8 48 0f b0 fd 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900033373c0 EFLAGS: 00010293
RAX: ffffffff83e37c58 RBX: 0000000000000004 RCX: ffff88807b0a0000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc90003337560 R08: ffffffff83e36aae R09: 1ffff92000666e18
R10: dffffc0000000000 R11: fffff52000666e19 R12: 1ffff11005354815
R13: 1ffff92000666e8c R14: dffffc0000000000 R15: ffff888029aa4340
FS:  0000555569397380(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005fdeb8 CR3: 000000007ae7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2256):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/29 09:07 upstream 928f79a188aa ef3de9e8 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in gfs2_withdraw
2025/06/05 12:41 upstream ec7714e49479 6b6b5f21 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/05/27 15:43 upstream 914873bc7df9 874a1386 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/03/17 13:47 upstream 4701f33a1070 948c34e4 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2024/12/07 10:57 upstream b5f217084ab3 9ac0fdc6 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 23:56 upstream 2c4a1f3fe03e 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_withdraw
2024/09/09 05:40 upstream 89f5e14d05b4 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in gfs2_withdraw
2025/06/15 16:57 upstream 8c6bc74c7f89 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/15 15:05 upstream 8c6bc74c7f89 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/15 08:07 upstream 8c6bc74c7f89 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/15 01:21 upstream 4774cfe3543a 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/14 22:04 upstream 4774cfe3543a 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/14 13:37 upstream 18531f4d1c8c 0e8da31f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/14 12:04 upstream 18531f4d1c8c 0e8da31f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/13 23:49 upstream 27605c8c0f69 1f72c409 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/13 21:25 upstream 27605c8c0f69 1f72c409 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/13 09:54 upstream 27605c8c0f69 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 20:39 upstream 2c4a1f3fe03e 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 17:43 upstream 2c4a1f3fe03e 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 13:41 upstream 2c4a1f3fe03e 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 08:20 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 07:05 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/12 05:37 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/11 22:44 upstream 488ef3560196 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/11 19:14 upstream aef17cb3d3c4 98683f8f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/11 14:00 upstream aef17cb3d3c4 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/11 10:33 upstream aef17cb3d3c4 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/11 06:53 upstream aef17cb3d3c4 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/11 00:55 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/10 23:35 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/10 19:49 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/10 16:37 upstream f09079bd04a9 5d7e17ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/10 10:36 upstream f09079bd04a9 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/10 01:57 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/09 23:45 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/09 21:52 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/09 18:16 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/09 15:13 upstream 19272b37aa4f 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/09 03:14 upstream 939f15e640f1 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/08 15:58 upstream 8630c59e9936 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/08 14:50 upstream 8630c59e9936 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/08 11:25 upstream 8630c59e9936 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/08 10:00 upstream 8630c59e9936 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/08 03:49 upstream 8630c59e9936 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 23:40 upstream bdc7f8c5adad 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 21:39 upstream bdc7f8c5adad 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 18:27 upstream bdc7f8c5adad 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 17:58 upstream bdc7f8c5adad 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 14:54 upstream bdc7f8c5adad 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 13:53 upstream bdc7f8c5adad 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 10:13 upstream c0c9379f235d 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 05:48 upstream c0c9379f235d 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/07 04:13 upstream c0c9379f235d 4826c28e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_withdraw
2025/06/10 05:37 linux-next 475c850a7fdd 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_withdraw
2024/09/02 11:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci df54f4a16f82 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in gfs2_withdraw
* Struck through repros no longer work on HEAD.