syzbot


kernel BUG in txAbort

Status: upstream: reported C repro on 2025/08/22 17:11
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+d1e49beb0590f426750b@syzkaller.appspotmail.com
First crash: 142d, last: 5d14h
Bug presence (1)
Date Name Commit Repro Result
2025/09/16 upstream (ToT) 46a51f4f5eda C [report] kernel BUG in txAbort
Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in txAbort origin:upstream -1 C error 65 1d18h 623d 0/3 upstream: reported C repro on 2024/04/28 14:11
linux-6.1 kernel BUG in txAbort -1 1 963d 963d 0/3 auto-obsoleted due to no activity on 2023/09/01 20:47
linux-6.1 kernel BUG in txAbort (2) origin:upstream -1 C 85 2d23h 631d 0/3 upstream: reported C repro on 2024/04/20 09:23
upstream kernel BUG in txUnlock jfs -1 C error 39035 now 1198d 0/29 upstream: reported C repro on 2022/10/01 14:27
Fix bisection attempts (2)
Created Duration User Patch Repo Result
2025/11/23 12:37 1h40m bisect fix linux-6.6.y OK (0) job log log
2025/10/24 01:57 1h40m bisect fix linux-6.6.y OK (0) job log log

Sample crash report:
ERROR: (device loop3): diWrite: ixpxd invalid
BUG at fs/jfs/jfs_txnmgr.c:2796 assert(mp->nohomeok)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:2796!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6080 Comm: syz.3.43 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:LogSyncRelease fs/jfs/jfs_txnmgr.c:2796 [inline]
RIP: 0010:txAbort+0x59a/0x5d0 fs/jfs/jfs_txnmgr.c:2622
Code: fe e9 3e ff ff ff e8 25 fd 83 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba ec 0a 00 00 48 c7 c1 e0 23 e4 8a e8 a6 97 5a 07 <0f> 0b e8 ff fc 83 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba
RSP: 0018:ffffc9000486f538 EFLAGS: 00010246
RAX: 0000000000000034 RBX: 0000000000000004 RCX: 1eb9cc2ee9b85a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000486f247 R09: 1ffff9200090de48
R10: dffffc0000000000 R11: fffff5200090de49 R12: 0000000000000024
R13: ffff8880234b3000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007eff9b6426c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4ba35c000 CR3: 00000000763dd000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 txCommit+0x4543/0x5250 fs/jfs/jfs_txnmgr.c:1355
 jfs_create+0x841/0xa40 fs/jfs/namei.c:156
 lookup_open fs/namei.c:3496 [inline]
 open_last_lookups fs/namei.c:3564 [inline]
 path_openat+0x1277/0x3190 fs/namei.c:3794
 do_filp_open+0x1c5/0x3d0 fs/namei.c:3824
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1421
 do_sys_open fs/open.c:1436 [inline]
 __do_sys_openat fs/open.c:1452 [inline]
 __se_sys_openat fs/open.c:1447 [inline]
 __x64_sys_openat+0x139/0x160 fs/open.c:1447
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7eff9a78f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007eff9b642038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007eff9a9e6090 RCX: 00007eff9a78f749
RDX: 000000000000275a RSI: 0000200000000280 RDI: ffffffffffffff9c
RBP: 00007eff9a813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007eff9a9e6128 R14: 00007eff9a9e6090 R15: 00007ffdc33316f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:LogSyncRelease fs/jfs/jfs_txnmgr.c:2796 [inline]
RIP: 0010:txAbort+0x59a/0x5d0 fs/jfs/jfs_txnmgr.c:2622
Code: fe e9 3e ff ff ff e8 25 fd 83 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba ec 0a 00 00 48 c7 c1 e0 23 e4 8a e8 a6 97 5a 07 <0f> 0b e8 ff fc 83 fe 48 c7 c7 00 10 e4 8a 48 c7 c6 f9 0b e4 8a ba
RSP: 0018:ffffc9000486f538 EFLAGS: 00010246
RAX: 0000000000000034 RBX: 0000000000000004 RCX: 1eb9cc2ee9b85a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000486f247 R09: 1ffff9200090de48
R10: dffffc0000000000 R11: fffff5200090de49 R12: 0000000000000024
R13: ffff8880234b3000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007eff9b6426c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2372880178 CR3: 00000000763dd000 CR4: 00000000003506e0

Crashes (9):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/24 19:47 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/09/15 06:06 linux-6.6.y 60a9e718726f e2beed91 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-6-kasan kernel BUG in txAbort
2026/01/06 12:29 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/12/29 23:51 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/12/24 18:29 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/12/16 12:27 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/09/16 23:51 linux-6.6.y 60a9e718726f e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/09/15 04:55 linux-6.6.y 60a9e718726f e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
2025/08/22 17:11 linux-6.6.y bb9c90ab9c5a bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan kernel BUG in txAbort
* Struck through repros no longer work on HEAD.