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kernel BUG in ocfs2_write_cluster_by_desc

Status: upstream: reported C repro on 2024/09/16 18:35
Subsystems: ocfs2
[Documentation on labels]
Reported-by: syzbot+18a87160c7d64ba2e2f6@syzkaller.appspotmail.com
First crash: 242d, last: 8d01h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: kernel BUG in ocfs2_write_cluster (log)
Repro: C syz .config
  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] [ocfs2?] kernel BUG in ocfs2_write_cluster_by_desc 1 (6) 2024/09/23 08:31
[PATCH 2/2] osfs2: Fix kernel BUG in ocfs2_write_cluster 3 (3) 2024/09/21 17:30
[PATCH 1/2] ocfs2: Fix deadlock in ocfs2_read_virt_blocks 3 (3) 2024/09/21 14:22
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in ocfs2_write_cluster_by_desc origin:upstream C error 4 56d 56d 0/3 upstream: reported C repro on 2025/03/21 13:38
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2024/09/30 19:12 15m retest repro upstream report log
2024/09/30 19:12 15m retest repro upstream report log
2024/09/30 19:12 15m retest repro upstream report log
2024/09/23 08:16 14m heming.zhao@suse.com patch upstream report log
2024/09/18 15:53 19m pvmohammedanees2003@gmail.com patch upstream OK log
2024/09/18 15:22 14m pvmohammedanees2003@gmail.com patch upstream report log
2024/09/17 16:26 13m pvmohammedanees2003@gmail.com patch upstream report log

Sample crash report:
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1178!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 5819 Comm: syz-executor215 Not tainted 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1178 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x2209/0x2230 fs/ocfs2/aops.c:1239
Code: 03 48 8d bc 24 30 02 00 00 48 c7 c6 0e 1c 0d 8e ba 7d 04 00 00 48 c7 c1 00 2d 48 8c e8 80 8a 1d 00 90 0f 0b e8 58 90 16 fe 90 <0f> 0b e8 50 90 16 fe 90 0f 0b e8 48 90 16 fe 90 0f 0b e8 40 90 16
RSP: 0018:ffffc90003e2ee40 EFLAGS: 00010293
RAX: ffffffff8388e388 RBX: ffff88805e085e20 RCX: ffff88803520da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003e2f190 R08: ffffffff8388c8ae R09: 1ffff1100bc10b94
R10: dffffc0000000000 R11: ffffed100bc10b95 R12: 0000000000000000
R13: ffff888076670000 R14: ffff88805e085df8 R15: 0000000000000000
FS:  0000555558bbe380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020401000 CR3: 000000007b6c6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3b0b/0x5060 fs/ocfs2/aops.c:1815
 ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1902
 generic_perform_write+0x346/0x990 mm/filemap.c:4055
 ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 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: 0033:0x7effd2114939
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcc41ab8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffcc41abac8 RCX: 00007effd2114939
RDX: 00000000175d9003 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007effd2190610 R08: 0000000020004480 R09: 00007ffcc41abac8
R10: 0000000000004430 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcc41abab8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1178 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x2209/0x2230 fs/ocfs2/aops.c:1239
Code: 03 48 8d bc 24 30 02 00 00 48 c7 c6 0e 1c 0d 8e ba 7d 04 00 00 48 c7 c1 00 2d 48 8c e8 80 8a 1d 00 90 0f 0b e8 58 90 16 fe 90 <0f> 0b e8 50 90 16 fe 90 0f 0b e8 48 90 16 fe 90 0f 0b e8 40 90 16
RSP: 0018:ffffc90003e2ee40 EFLAGS: 00010293
RAX: ffffffff8388e388 RBX: ffff88805e085e20 RCX: ffff88803520da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003e2f190 R08: ffffffff8388c8ae R09: 1ffff1100bc10b94
R10: dffffc0000000000 R11: ffffed100bc10b95 R12: 0000000000000000
R13: ffff888076670000 R14: ffff88805e085df8 R15: 0000000000000000
FS:  0000555558bbe380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020401000 CR3: 000000007b6c6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (110):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/27 02:49 upstream d6ef8b40d075 d3ccff63 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2024/09/16 19:10 upstream adfc3ded5c33 49cf0773 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2024/09/16 18:28 upstream adfc3ded5c33 49cf0773 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2024/09/16 17:46 upstream adfc3ded5c33 49cf0773 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/20 17:12 upstream 119009db2674 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/04/03 03:11 upstream 92b71befc349 c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/03/30 06:23 upstream 7d06015d936c d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/03/25 13:41 upstream 2f2d52945852 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/03/24 07:26 upstream 586de92313fc 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/03/24 02:34 upstream 586de92313fc 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/03/13 07:40 upstream 0fed89a961ea 1a5d9317 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in ocfs2_write_cluster_by_desc
2025/01/05 18:52 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/09 04:46 upstream 2c89c1b655c0 bb813bcc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/08 16:06 upstream d76bb1ebb558 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/07 22:21 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/07 12:35 upstream 0d8d44db295c 350f4ffc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/06 10:56 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/06 05:38 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/06 04:16 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/06 02:07 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/06 00:54 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/05 12:52 upstream 92a09c47464d 6ca47dd8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/04 21:50 upstream e8ab83e34bdc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/04 20:31 upstream e8ab83e34bdc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/04 18:21 upstream e8ab83e34bdc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/04 16:10 upstream e8ab83e34bdc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/04 12:13 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/04 08:21 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/03 22:41 upstream 95d3481af6dc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/02 22:50 upstream 00b827f0cffa b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/02 16:58 upstream ebd297a2affa d7f099d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/02 07:41 upstream ebd297a2affa 51b137cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/02 02:41 upstream 4f79eaa2ceac 51b137cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/01 20:27 upstream 4f79eaa2ceac 51b137cd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/01 11:11 upstream 7a13c14ee59d ce7952f4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/05/01 08:34 upstream 7a13c14ee59d ce7952f4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/30 21:52 upstream b6ea1680d0ac 937aafd7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/30 11:44 upstream 8bac8898fe39 85a5a23f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/30 09:43 upstream 8bac8898fe39 85a5a23f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/27 12:10 upstream 5bc1018675ec c6b4fb39 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/23 07:36 upstream bc3372351d0c 53a8b9bd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/23 05:19 upstream bc3372351d0c 53a8b9bd .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/21 12:21 upstream 9d7a0577c9db 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/18 20:29 upstream fc96b232f8e7 2a20f901 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/14 12:38 upstream 8ffd015db85f 0bd6db41 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/13 11:59 upstream 7cdabafc0012 0bd6db41 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/10 14:11 upstream 3b07108ada81 1ef3ab4d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/08 15:19 upstream 0af2f6be1b42 a775275d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/07 03:28 upstream 0af2f6be1b42 1c65791e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/03/25 14:51 upstream 2f2d52945852 875573af .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/03/19 17:52 upstream 81e4f8d68c66 8d0a2921 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/03/19 03:55 upstream 76b6905c11fd 22a6c2b1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2025/03/13 04:26 upstream 0fed89a961ea 1a5d9317 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_write_cluster_by_desc
2024/11/24 02:12 linux-next cfba9f07a1d6 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in ocfs2_write_cluster_by_desc
2025/04/01 03:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_write_cluster_by_desc
2025/03/23 05:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_write_cluster_by_desc
2025/03/16 23:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5618886fdab e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in ocfs2_write_cluster_by_desc
* Struck through repros no longer work on HEAD.