syzbot

 sign-in | mailing list | source | docs
🐞 Open [732]
🐞 Fixed [74]
🐞 Invalid [927]
⬇ Missing Backports [121]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

kernel BUG in txUnlock

Status: upstream: reported C repro on 2023/06/04 02:49
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+3c3866c71da45ef61201@syzkaller.appspotmail.com
First crash: 774d, last: 2d09h
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2024/07/29 upstream (ToT) dc1c8034e31b C [report] kernel BUG in txUnlock
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 kernel BUG in txUnlock origin:upstream -1 C 153 17h04m 26d 0/2 upstream: reported C repro on 2025/06/20 22:07
linux-4.19 kernel BUG in txUnlock jfs -1 C error 7 893d 935d 0/1 upstream: reported C repro on 2022/12/24 18:38
upstream kernel BUG in txUnlock jfs -1 C error 28180 now 1020d 0/29 upstream: reported C repro on 2022/10/01 14:27
linux-6.1 kernel BUG in txUnlock origin:upstream -1 C 3285 1h44m 774d 0/3 upstream: reported C repro on 2023/06/04 03:57
linux-4.14 kernel BUG in txUnlock jfs -1 C 2 865d 928d 0/1 upstream: reported C repro on 2023/01/01 13:47

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: 276 Comm: jfsCommit Not tainted 5.15.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:txUnlock+0xc6e/0xca0 fs/jfs/jfs_txnmgr.c:931
Code: c8 7e 4c 07 0f 0b e8 b1 ff 99 fe 48 c7 c7 40 7c c1 8a 48 c7 c6 39 78 c1 8a ba a3 03 00 00 48 c7 c1 00 87 c1 8a e8 a2 7e 4c 07 <0f> 0b e8 8b ff 99 fe 48 c7 c7 40 7c c1 8a 48 c7 c6 39 78 c1 8a ba
RSP: 0018:ffffc90002cd7d08 EFLAGS: 00010246
RAX: 0000000000000037 RBX: 0000000000000000 RCX: 8b5d1aee60594b00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff888073675ba0 R08: ffffffff81669a2c R09: ffffed10172067a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802ad18000
R13: ffff88802330b494 R14: ffffc9000284a000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005558294a2e88 CR3: 0000000022f39000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 txLazyCommit fs/jfs/jfs_txnmgr.c:2716 [inline]
 jfs_lazycommit+0x5cd/0xc30 fs/jfs/jfs_txnmgr.c:2766
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace 1ad77cbae54dd99c ]---
RIP: 0010:txUnlock+0xc6e/0xca0 fs/jfs/jfs_txnmgr.c:931
Code: c8 7e 4c 07 0f 0b e8 b1 ff 99 fe 48 c7 c7 40 7c c1 8a 48 c7 c6 39 78 c1 8a ba a3 03 00 00 48 c7 c1 00 87 c1 8a e8 a2 7e 4c 07 <0f> 0b e8 8b ff 99 fe 48 c7 c7 40 7c c1 8a 48 c7 c6 39 78 c1 8a ba
RSP: 0018:ffffc90002cd7d08 EFLAGS: 00010246
RAX: 0000000000000037 RBX: 0000000000000000 RCX: 8b5d1aee60594b00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff888073675ba0 R08: ffffffff81669a2c R09: ffffed10172067a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802ad18000
R13: ffff88802330b494 R14: ffffc9000284a000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005558294a2e88 CR3: 0000000022f39000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1738):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/07 07:18 linux-5.15.y 72244eab0dad df3dc63b .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in txUnlock
2024/07/28 18:22 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in txUnlock
2025/07/02 12:59 linux-5.15.y 3dea0e7f549e bc80e4f0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/03/23 21:50 linux-5.15.y 0c935c049b5c 4e8d3850 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/01/21 08:29 linux-5.15.y 4735586da88e 6e87cfa2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2024/04/15 23:23 linux-5.15.y fa3df276cd36 b9af7e61 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2023/06/04 03:22 linux-5.15.y 0ab06468cbd1 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2023/06/24 22:30 linux-5.15.y f67653019430 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in txUnlock
2025/07/09 23:53 linux-5.15.y 3dea0e7f549e f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in txUnlock
2025/07/01 09:45 linux-5.15.y 3dea0e7f549e 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in txUnlock
2025/07/15 05:54 linux-5.15.y 89950c454265 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/14 18:12 linux-5.15.y 89950c454265 d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/14 14:21 linux-5.15.y 2f693b607545 d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/13 17:16 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/13 02:56 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/12 13:53 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/11 23:21 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/10 18:18 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/10 18:13 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/10 12:32 linux-5.15.y 3dea0e7f549e 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/10 04:11 linux-5.15.y 3dea0e7f549e 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/09 10:18 linux-5.15.y 3dea0e7f549e f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/08 16:24 linux-5.15.y 3dea0e7f549e 4d9fdfa4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/08 09:45 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/08 06:00 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/08 01:48 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/07 16:16 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/07 12:23 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/07 11:17 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/06 14:20 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/06 11:15 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/06 06:52 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/05 08:05 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/05 04:56 linux-5.15.y 3dea0e7f549e d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/05 02:52 linux-5.15.y 3dea0e7f549e d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/05 01:32 linux-5.15.y 3dea0e7f549e d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/04 16:02 linux-5.15.y 3dea0e7f549e d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/04 10:32 linux-5.15.y 3dea0e7f549e 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/04 00:57 linux-5.15.y 3dea0e7f549e 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/03 06:01 linux-5.15.y 3dea0e7f549e 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/02 06:03 linux-5.15.y 3dea0e7f549e bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/07/01 15:38 linux-5.15.y 3dea0e7f549e 091a06cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/30 19:13 linux-5.15.y 3dea0e7f549e 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/30 19:10 linux-5.15.y 3dea0e7f549e 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/30 13:45 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/29 11:49 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/29 06:25 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/29 03:08 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/28 18:03 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/27 23:42 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/27 17:23 linux-5.15.y 3dea0e7f549e 803ce19b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/27 17:22 linux-5.15.y 3dea0e7f549e 803ce19b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/27 04:33 linux-5.15.y 1c700860e8bc 803ce19b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/26 19:06 linux-5.15.y 1c700860e8bc 803ce19b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/26 15:31 linux-5.15.y 1c700860e8bc 803ce19b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/26 01:41 linux-5.15.y 1c700860e8bc 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/24 19:29 linux-5.15.y 1c700860e8bc 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2025/06/24 08:05 linux-5.15.y 1c700860e8bc e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
2023/06/04 02:49 linux-5.15.y 0ab06468cbd1 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in txUnlock
* Struck through repros no longer work on HEAD.