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kernel BUG in txUnlock

Status: upstream: reported C repro on 2023/06/04 03:57
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+d1ae34d83d7e0bb72ed8@syzkaller.appspotmail.com
First crash: 670d, last: 1h34m
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2023/11/15 upstream (ToT) 9bacdd8996c7 C [report] kernel BUG in txUnlock
2025/03/27 upstream (ToT) f6e0150b2003 C Failed due to an error; will retry later
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in txUnlock origin:upstream C error 1202 2h56m 670d 0/3 upstream: reported C repro on 2023/06/04 02:49
linux-4.19 kernel BUG in txUnlock jfs C error 7 789d 832d 0/1 upstream: reported C repro on 2022/12/24 18:38
upstream kernel BUG in txUnlock jfs C error 20870 54m 916d 0/28 upstream: reported C repro on 2022/10/01 14:27
linux-4.14 kernel BUG in txUnlock jfs C 2 761d 824d 0/1 upstream: reported C repro on 2023/01/01 13:47
▶ ▼ Fix bisection attempts (6)
Created Duration User Patch Repo Result
2024/03/16 11:16 1h24m bisect fix linux-6.1.y OK (0) job log log
2024/02/11 00:26 1h44m bisect fix linux-6.1.y OK (0) job log log
2024/01/05 00:05 1h08m bisect fix linux-6.1.y OK (0) job log log
2023/11/15 01:13 1h15m bisect fix linux-6.1.y OK (0) job log log
2023/10/13 14:59 2h11m bisect fix linux-6.1.y OK (0) job log log
2023/07/08 01:10 2h17m bisect fix linux-6.1.y OK (0) job log log

Sample crash report:
BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:931!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 132 Comm: jfsCommit Not tainted 6.1.82-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:txUnlock+0xc6e/0xca0 fs/jfs/jfs_txnmgr.c:931
Code: 91 89 7d 07 0f 0b e8 71 88 80 fe 48 c7 c7 c0 c7 24 8b 48 c7 c6 b9 c3 24 8b ba a3 03 00 00 48 c7 c1 a0 d4 24 8b e8 6b 89 7d 07 <0f> 0b e8 4b 88 80 fe 48 c7 c7 c0 c7 24 8b 48 c7 c6 b9 c3 24 8b ba
RSP: 0018:ffffc90002cffd08 EFLAGS: 00010246
RAX: 0000000000000037 RBX: 0000000000000000 RCX: c6b4fd14d5d09100
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88807d6b2ba0 R08: ffffffff816e1b8c R09: fffff5200059ff41
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801ba539d0
R13: ffff888021514894 R14: ffffc90002852000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056072f9a7d78 CR3: 0000000077370000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline]
 jfs_lazycommit+0x5d0/0xb60 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txUnlock+0xc6e/0xca0 fs/jfs/jfs_txnmgr.c:931
Code: 91 89 7d 07 0f 0b e8 71 88 80 fe 48 c7 c7 c0 c7 24 8b 48 c7 c6 b9 c3 24 8b ba a3 03 00 00 48 c7 c1 a0 d4 24 8b e8 6b 89 7d 07 <0f> 0b e8 4b 88 80 fe 48 c7 c7 c0 c7 24 8b 48 c7 c6 b9 c3 24 8b ba
RSP: 0018:ffffc90002cffd08 EFLAGS: 00010246
RAX: 0000000000000037 RBX: 0000000000000000 RCX: c6b4fd14d5d09100
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88807d6b2ba0 R08: ffffffff816e1b8c R09: fffff5200059ff41
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801ba539d0
R13: ffff888021514894 R14: ffffc90002852000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056072f9a7d78 CR3: 0000000077370000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2482):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/17 17:29 linux-6.1.y d7543167affd d615901c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in txUnlock
2023/07/23 05:58 linux-6.1.y a456e1743881 27cbe77f .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/02/17 00:04 linux-6.1.y 0cbb5f65e52f 40a34ec9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2024/12/22 05:35 linux-6.1.y 29f02ec58a94 d7f584ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2024/12/17 17:20 linux-6.1.y 52f863f820fd f93b2b55 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2024/05/28 15:16 linux-6.1.y 88690811da69 f550015e .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2023/06/04 03:57 linux-6.1.y d2869ace6eeb a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2025/04/04 19:58 linux-6.1.y 8e60a714ba3b 1c4febdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/04 19:55 linux-6.1.y 8e60a714ba3b 1c4febdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/04 11:09 linux-6.1.y 8e60a714ba3b 1c4febdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/04 04:56 linux-6.1.y 8e60a714ba3b d7ae3a11 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/03 20:06 linux-6.1.y 8e60a714ba3b d7ae3a11 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/03 06:58 linux-6.1.y 8e60a714ba3b 996a9618 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/02 08:03 linux-6.1.y 8e60a714ba3b c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/02 08:03 linux-6.1.y 8e60a714ba3b c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/01 16:18 linux-6.1.y 8e60a714ba3b b8645499 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/01 04:01 linux-6.1.y 8e60a714ba3b 36d76a97 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/29 19:09 linux-6.1.y 8e60a714ba3b d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/29 05:50 linux-6.1.y 8e60a714ba3b cf25e2c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/29 00:43 linux-6.1.y 8e60a714ba3b 9a1a9e31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/29 00:43 linux-6.1.y 8e60a714ba3b 9a1a9e31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/28 17:20 linux-6.1.y 344a09659766 9a1a9e31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/27 17:09 linux-6.1.y 344a09659766 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/26 18:27 linux-6.1.y 344a09659766 20510e88 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/26 04:08 linux-6.1.y 344a09659766 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/26 04:03 linux-6.1.y 344a09659766 89d30d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/24 19:38 linux-6.1.y 344a09659766 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/24 00:51 linux-6.1.y 344a09659766 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/23 05:05 linux-6.1.y 344a09659766 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/21 22:05 linux-6.1.y 344a09659766 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/21 22:05 linux-6.1.y 344a09659766 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/21 03:40 linux-6.1.y 344a09659766 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/20 20:36 linux-6.1.y 344a09659766 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/20 06:20 linux-6.1.y 344a09659766 9209bc22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/19 17:31 linux-6.1.y 344a09659766 e20d7b13 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/19 04:24 linux-6.1.y 344a09659766 8d0a2921 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/18 21:23 linux-6.1.y 344a09659766 22a6c2b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/18 21:23 linux-6.1.y 344a09659766 22a6c2b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/17 21:52 linux-6.1.y 344a09659766 ce3352cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/17 07:46 linux-6.1.y 344a09659766 948c34e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/14 01:56 linux-6.1.y 344a09659766 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/13 15:16 linux-6.1.y 344a09659766 44be8b44 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/13 15:16 linux-6.1.y 344a09659766 44be8b44 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/13 10:08 linux-6.1.y 6ae7ac5c4251 44be8b44 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/03/12 21:57 linux-6.1.y 6ae7ac5c4251 1a5d9317 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in txUnlock
2025/04/04 18:26 linux-6.1.y 8e60a714ba3b 1c4febdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2025/04/04 02:28 linux-6.1.y 8e60a714ba3b d7ae3a11 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2025/03/13 02:50 linux-6.1.y 6ae7ac5c4251 1a5d9317 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2025/03/12 15:49 linux-6.1.y 6ae7ac5c4251 ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
2025/03/12 14:18 linux-6.1.y 6ae7ac5c4251 ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in txUnlock
* Struck through repros no longer work on HEAD.