kernel BUG in txEnd (2)

Status: upstream: reported C repro on 2024/02/13 15:23
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+776b5fc6c99745aa7860@syzkaller.appspotmail.com
First crash: 905d, last: now
Cause bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (9)
ID Workflow Result Correct Bug Created Started Finished Revision
ea5ee614 assessment-security 💥 kernel BUG in txEnd (2) 2026/08/05 00:04 2026/08/05 00:04 2026/08/05 00:04 d4abbeac
4820a0ab assessment-security 💥 kernel BUG in txEnd (2) 2026/07/05 06:09 2026/07/05 06:09 2026/07/05 06:28 93f57954
320c0b57 patching 💥 kernel BUG in txEnd (2) 2026/06/29 20:23 2026/06/29 20:23 2026/06/29 20:59 fff8d0a0
5e6dc9e2 patching 💥 kernel BUG in txEnd (2) 2026/06/26 19:54 2026/06/26 22:16 2026/06/26 22:16 7ff32d8b
0f3b9e2e assessment-security 💥 kernel BUG in txEnd (2) 2026/06/18 05:38 2026/06/18 05:38 2026/06/18 06:04 b62b3ded
22f84333 assessment-security 💥 kernel BUG in txEnd (2) 2026/06/10 01:38 2026/06/10 01:38 2026/06/10 02:03 c36c07f6
54662c80 assessment-security 💥 kernel BUG in txEnd (2) 2026/06/04 04:01 2026/06/04 04:01 2026/06/04 04:17 62fe1528
2615c788 assessment-security 💥 kernel BUG in txEnd (2) 2026/06/01 21:02 2026/06/01 21:02 2026/06/01 21:19 386cc6da
dc9dca27 assessment-security 💥 kernel BUG in txEnd (2) 2026/05/18 02:03 2026/05/18 02:03 2026/05/18 02:25 de5aae85
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[syzbot] [jfs?] kernel BUG in txEnd (2) 0 (2) 2024/03/29 07:57
Re: [syzbot] [jfs?] kernel BUG in txEnd (2) 1 (1) 2024/02/20 03:00
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in txEnd jfs -1 syz, C inconclusive done 6 928d 1143d 25/29 fixed on 2024/01/30 15:47
linux-6.1 kernel BUG in txEnd origin:upstream -1 syz, C error 15 13d 1055d 0/3 upstream: reported C repro on 2023/09/16 10:44
linux-5.15 kernel BUG in txEnd origin:upstream -1 syz, C error 10 13d 1096d 0/3 upstream: reported C repro on 2023/08/06 15:29
linux-6.6 kernel BUG in txEnd -1 7 84d 281d 0/2 upstream: reported on 2025/10/29 03:17
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/08/06 17:30 46m retest repro upstream report log
2025/07/17 00:51 30m retest repro upstream report log
2025/03/28 14:04 25m retest repro upstream report log
2025/03/28 10:40 13m retest repro upstream error
2024/11/20 13:20 2h36m retest repro upstream report log
2024/11/02 04:25 12m retest repro upstream report log
2024/08/18 09:14 18m retest repro upstream report log
2024/07/03 04:23 20m retest repro upstream report log
2024/05/30 06:34 17m retest repro upstream report log
2024/04/19 08:04 21m retest repro upstream error
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2025/05/22 22:35 2h56m bisect fix upstream OK (0) job log log
2024/08/04 06:01 2h41m bisect fix upstream OK (0) job log log

Sample crash report:
jfs_dirty_inode called on read-only volume
Is remount racy?
BUG at fs/jfs/jfs_txnmgr.c:528 assert(tblk->next == 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:528!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 5253 Comm: syz-executor989 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:txEnd+0x583/0x5a0 fs/jfs/jfs_txnmgr.c:528
Code: e9 59 fb ff ff e8 bd 24 84 fe 48 c7 c1 40 a4 4a 8b ba 10 02 00 00 48 c7 c6 c0 9e 4a 8b 48 c7 c7 00 9f 4a 8b e8 5e f5 64 fe 90 <0f> 0b 48 89 ef e8 03 07 df fe e9 40 fd ff ff e8 c9 06 df fe e9 2e
RSP: 0018:ffffc90008cc7ab8 EFLAGS: 00010282
RAX: 0000000000000036 RBX: ffffc900025d1110 RCX: ffffffff816f2339
RDX: 0000000000000000 RSI: ffffffff816fab26 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: ffffffff8dd43da0 R15: ffffc900025d1112
FS:  00007fc48c2826c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc484d0b000 CR3: 000000001511e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 add_missing_indices fs/jfs/jfs_dtree.c:2663 [inline]
 jfs_readdir+0x2952/0x4310 fs/jfs/jfs_dtree.c:3009
 wrap_directory_iterator+0xa8/0xe0 fs/readdir.c:67
 iterate_dir+0x295/0x9e0 fs/readdir.c:110
 __do_sys_getdents fs/readdir.c:326 [inline]
 __se_sys_getdents fs/readdir.c:311 [inline]
 __x64_sys_getdents+0x14f/0x2d0 fs/readdir.c:311
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fc48c2f6c39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 1d 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:00007fc48c282168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fc48c37e6d8 RCX: 00007fc48c2f6c39
RDX: 0000000000001000 RSI: 0000000020006600 RDI: 0000000000000005
RBP: 00007fc48c37e6d0 R08: 00007fc48c2826c0 R09: 0000000000000000
R10: 00007fc48c2826c0 R11: 0000000000000246 R12: 00007fc48c37e6dc
R13: 000000000000006e R14: 00007ffdf1f02700 R15: 00007ffdf1f027e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x583/0x5a0 fs/jfs/jfs_txnmgr.c:528
Code: e9 59 fb ff ff e8 bd 24 84 fe 48 c7 c1 40 a4 4a 8b ba 10 02 00 00 48 c7 c6 c0 9e 4a 8b 48 c7 c7 00 9f 4a 8b e8 5e f5 64 fe 90 <0f> 0b 48 89 ef e8 03 07 df fe e9 40 fd ff ff e8 c9 06 df fe e9 2e
RSP: 0018:ffffc90008cc7ab8 EFLAGS: 00010282
RAX: 0000000000000036 RBX: ffffc900025d1110 RCX: ffffffff816f2339
RDX: 0000000000000000 RSI: ffffffff816fab26 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: ffffffff8dd43da0 R15: ffffc900025d1112
FS:  00007fc48c2826c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc484d0b000 CR3: 000000001511e000 CR4: 0000000000350ef0

Crashes (479):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/29 07:56 upstream fe46a7dd189e 120789fd .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-badwrites-root kernel BUG in txEnd
2024/05/16 06:31 upstream 33e02dc69afb ef5d53ed .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-qemu-upstream kernel BUG in txEnd
2026/07/20 05:29 upstream 980ab36ae597 72524a66 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in txEnd
2026/07/02 10:24 upstream 4a50a141f05a 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in txEnd
2026/05/03 15:08 upstream 66edb901bf87 a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in txEnd
2024/04/30 03:46 upstream b947cc5bf6d7 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root kernel BUG in txEnd
2026/08/06 16:32 upstream 0d8395707651 cc56899a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/06 06:19 upstream 0d8395707651 cd5b1963 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/05 17:04 upstream c21bb4193868 1eed00d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/05 07:17 upstream 562bfb501c54 52aa2820 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/05 05:56 upstream 562bfb501c54 52aa2820 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/05 02:22 upstream 562bfb501c54 52aa2820 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/03 21:48 upstream 075b74841bd0 bdd50915 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/03 16:05 upstream 075b74841bd0 bdd50915 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/03 13:59 upstream 075b74841bd0 bdd50915 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/02 07:48 upstream 2d2338c93da7 e611ffe1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/02 05:39 upstream 2d2338c93da7 e611ffe1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/02 04:25 upstream 2d2338c93da7 e611ffe1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/01 18:12 upstream 02dc699f83d0 e611ffe1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/08/01 11:15 upstream a2cf4ef33184 e611ffe1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/31 10:09 upstream e05b559f9cda aaffb173 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/30 16:58 upstream 11028ab62899 0a1bc234 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/30 15:48 upstream 11028ab62899 0a1bc234 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/30 06:03 upstream fc46aed51f62 2377cd3d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/29 08:52 upstream 3b5f4b83c4ab 19622d9d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/29 03:02 upstream 3b5f4b83c4ab 19622d9d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/27 21:32 upstream f5098b6bae76 1f273138 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/27 12:24 upstream f5098b6bae76 1f273138 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/27 05:48 upstream 4235cb24ec1e 492bab15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/26 18:27 upstream 3dab139d4795 492bab15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/26 16:50 upstream 3dab139d4795 492bab15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/25 19:16 upstream 0ce37745d4bf 492bab15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/25 18:17 upstream 0ce37745d4bf 492bab15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/25 09:26 upstream e2a936998ab2 492bab15 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/24 06:38 upstream d326f83e819c 544adce9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/23 20:07 upstream 4539944e5151 71a13572 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/23 18:48 upstream 4539944e5151 71a13572 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/23 16:00 upstream 4539944e5151 71a13572 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/23 11:40 upstream 4539944e5151 71a13572 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/22 12:22 upstream 248951ddc14d 4a865b71 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/22 12:21 upstream 248951ddc14d 4a865b71 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/22 08:49 upstream 248951ddc14d b561ce9c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/22 00:23 upstream 248951ddc14d b561ce9c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/21 19:49 upstream b95f03f04d47 7c5de9c3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/21 04:43 upstream 1590cf032971 de6a700d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/20 18:20 upstream 1590cf032971 4763fed7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/19 18:51 upstream c6859eed755d 72524a66 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/19 06:14 upstream f2ec6312bf71 72524a66 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/18 13:43 upstream 1229e2e57a5c 72524a66 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/18 09:01 upstream af5e34a41cd6 72524a66 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/18 04:35 upstream af5e34a41cd6 72524a66 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2026/07/17 13:06 upstream fce2dfa773ce 7f27c57a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in txEnd
2024/02/13 14:38 upstream c664e16bb1ba e66542d7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in txEnd
2026/04/02 03:31 linux-next bd0f139e5fc1 0cb124d5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in txEnd
2025/12/21 16:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f0b4cce4481 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in txEnd
* Struck through repros no longer work on HEAD.