syzbot


kernel BUG in txAbort

Status: upstream: reported on 2025/08/22 17:11
Reported-by: syzbot+d1e49beb0590f426750b@syzkaller.appspotmail.com
First crash: 9d23h, last: 9d23h
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 49 2d23h 491d 0/3 upstream: reported C repro on 2024/04/28 14:11
linux-6.1 kernel BUG in txAbort -1 1 830d 830d 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 51 9d23h 499d 0/3 upstream: reported C repro on 2024/04/20 09:23
upstream kernel BUG in txUnlock jfs -1 C error 31612 52m 1066d 0/29 upstream: reported C repro on 2022/10/01 14:27

Sample crash report:
ERROR: (device loop4): diWrite: ixpxd invalid
BUG at fs/jfs/jfs_txnmgr.c:2795 assert(mp->nohomeok)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:2795!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 22078 Comm: syz.4.4061 Not tainted 6.6.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:LogSyncRelease fs/jfs/jfs_txnmgr.c:2795 [inline]
RIP: 0010:txAbort+0x59a/0x5d0 fs/jfs/jfs_txnmgr.c:2621
Code: fe e9 3e ff ff ff e8 65 a8 84 fe 48 c7 c7 c0 0b e4 8a 48 c7 c6 b9 07 e4 8a ba eb 0a 00 00 48 c7 c1 a0 1f e4 8a e8 66 18 61 07 <0f> 0b e8 3f a8 84 fe 48 c7 c7 c0 0b e4 8a 48 c7 c6 b9 07 e4 8a ba
RSP: 0018:ffffc9000b51f918 EFLAGS: 00010246
RAX: 0000000000000034 RBX: 0000000000000004 RCX: 45ffd45daba6c800
RDX: ffffc9001281a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 0000000000000000 R08: ffffc9000b51f627 R09: 1ffff920016a3ec4
R10: dffffc0000000000 R11: fffff520016a3ec5 R12: 0000000000000024
R13: ffff88802fea49b0 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f1332c3d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2bf9db7dac CR3: 0000000069ed3000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 txCommit+0x4543/0x5250 fs/jfs/jfs_txnmgr.c:1354
 jfs_symlink+0xbd4/0xe50 fs/jfs/namei.c:1039
 vfs_symlink+0x138/0x2b0 fs/namei.c:4473
 do_symlinkat+0x1b2/0x3f0 fs/namei.c:4499
 __do_sys_symlink fs/namei.c:4520 [inline]
 __se_sys_symlink fs/namei.c:4518 [inline]
 __x64_sys_symlink+0x7e/0x90 fs/namei.c:4518
 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: 0033:0x7f1331d8ebe9
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:00007f1332c3d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007f1331fb6180 RCX: 00007f1331d8ebe9
RDX: 0000000000000000 RSI: 00002000000001c0 RDI: 00002000000204c0
RBP: 00007f1331e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1331fb6218 R14: 00007f1331fb6180 R15: 00007ffd363381e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:LogSyncRelease fs/jfs/jfs_txnmgr.c:2795 [inline]
RIP: 0010:txAbort+0x59a/0x5d0 fs/jfs/jfs_txnmgr.c:2621
Code: fe e9 3e ff ff ff e8 65 a8 84 fe 48 c7 c7 c0 0b e4 8a 48 c7 c6 b9 07 e4 8a ba eb 0a 00 00 48 c7 c1 a0 1f e4 8a e8 66 18 61 07 <0f> 0b e8 3f a8 84 fe 48 c7 c7 c0 0b e4 8a 48 c7 c6 b9 07 e4 8a ba
RSP: 0018:ffffc9000b51f918 EFLAGS: 00010246

RAX: 0000000000000034 RBX: 0000000000000004 RCX: 45ffd45daba6c800
RDX: ffffc9001281a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 0000000000000000 R08: ffffc9000b51f627 R09: 1ffff920016a3ec4
R10: dffffc0000000000 R11: fffff520016a3ec5 R12: 0000000000000024
R13: ffff88802fea49b0 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f1332c3d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2bfa973990 CR3: 0000000069ed3000 CR4: 00000000003506f0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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.