BUG at fs/jfs/jfs_txnmgr.c:663 assert(last)
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kernel BUG at fs/jfs/jfs_txnmgr.c:663!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 10179 Comm: syz.2.724 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:663
Code: e9 6a f8 ff ff e8 ee 15 66 fe 48 c7 c7 a0 f1 0b 8c 48 c7 c6 99 ed 0b 8c ba 97 02 00 00 48 c7 c1 c0 f2 0b 8c e8 3f b2 c7 fd 90 <0f> 0b e8 c7 15 66 fe 48 c7 c7 80 f3 0b 8c e8 2b b2 c7 fd 48 c7 c7
RSP: 0018:ffffc90005d6f740 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: d17bbf898c021500
RDX: ffffc9000e783000 RSI: 00000000000042c4 RDI: 00000000000042c5
RBP: ffffc90005d6f868 R08: ffffc90005d6f4c7 R09: 1ffff92000bade98
R10: dffffc0000000000 R11: fffff52000bade99 R12: 1ffff92000527400
R13: ffffc9000293a000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f4c397786c0(0000) GS:ffff88812535c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb0bfb4b6b0 CR3: 0000000031cc8000 CR4: 00000000003526f0
DR0: 0000000000000005 DR1: 0000000000000006 DR2: 0000000000000003
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x869/0x5410 fs/jfs/jfs_txnmgr.c:1257
 jfs_mkdir+0x8e9/0xb00 fs/jfs/namei.c:291
 vfs_mkdir+0x413/0x630 fs/namei.c:5261
 filename_mkdirat+0x285/0x510 fs/namei.c:5294
 __do_sys_mkdirat fs/namei.c:5315 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5312
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4c3899b687
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4c39777e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f4c39777ee0 RCX: 00007f4c3899b687
RDX: 00000000000001ff RSI: 0000200000000300 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000200000000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000300
R13: 00007f4c39777ea0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:663
Code: e9 6a f8 ff ff e8 ee 15 66 fe 48 c7 c7 a0 f1 0b 8c 48 c7 c6 99 ed 0b 8c ba 97 02 00 00 48 c7 c1 c0 f2 0b 8c e8 3f b2 c7 fd 90 <0f> 0b e8 c7 15 66 fe 48 c7 c7 80 f3 0b 8c e8 2b b2 c7 fd 48 c7 c7
RSP: 0018:ffffc90005d6f740 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: d17bbf898c021500
RDX: ffffc9000e783000 RSI: 00000000000042c4 RDI: 00000000000042c5
RBP: ffffc90005d6f868 R08: ffffc90005d6f4c7 R09: 1ffff92000bade98
R10: dffffc0000000000 R11: fffff52000bade99 R12: 1ffff92000527400
R13: ffffc9000293a000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f4c397786c0(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f249efa0010 CR3: 0000000031cc8000 CR4: 00000000003526f0
DR0: 0000000000000005 DR1: 0000000000000006 DR2: 0000000000000003
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400