Locker's tblock: ffffc90002669430: 00000004 0000001c 00000008 00000000
Tlock: ffffc9000288a3a8: 00020000 80018000 3074c3e0 ffff8880
Tlock: ffffc9000288a3b8: 5597b270 ffff8880 01140000 07002000
Tlock: ffffc9000288a3c8: 0102011c 0000002c 00000001 0000002c
Tlock: ffffc9000288a3d8: 00000010 00000030 00000000 00000000
Tlock: ffffc9000288a3e8: 00000000 00000000
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:834!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 12777 Comm: syz.2.2538 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:txLock+0x1da0/0x2090 fs/jfs/jfs_txnmgr.c:834
Code: 8a 48 c7 c6 00 45 c6 8a ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 40 6a 00 6a 48 e8 94 5c 19 01 48 83 c4 10 <0f> 0b e8 29 bd 92 fe 48 89 df 48 c7 c6 00 4d c6 8a e8 5a 4b cd fe
RSP: 0018:ffffc9000d2ef7e0 EFLAGS: 00010282
RAX: 1001148926ff1e00 RBX: ffff88805597b270 RCX: 0000000000080000
RDX: ffffc9000e749000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000d2ef940 R08: dffffc0000000000 R09: fffff52001a5de55
R10: fffff52001a5de55 R11: 1ffff92001a5de54 R12: 0000000000000002
R13: 0000000000000003 R14: 1ffff92000511475 R15: ffffc9000288a3aa
FS:  00007f15b0dd56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc3d3e5feb CR3: 0000000028050000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 diWrite+0x43c/0x1600 fs/jfs/jfs_imap.c:654
 txCommit+0x84b/0x51c0 fs/jfs/jfs_txnmgr.c:1255
 jfs_commit_inode+0x2ec/0x520 fs/jfs/inode.c:108
 jfs_fsync+0x181/0x1b0 fs/jfs/file.c:37
 generic_write_sync include/linux/fs.h:2962 [inline]
 generic_file_write_iter+0x25d/0x2e0 mm/filemap.c:4010
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x44c/0x960 fs/read_write.c:584
 ksys_write+0x143/0x240 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f15b2b8eec9
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:00007f15b0dd5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f15b2de6090 RCX: 00007f15b2b8eec9
RDX: 000000000000045c RSI: 00002000000007c0 RDI: 0000000000000004
RBP: 00007f15b2c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f15b2de6128 R14: 00007f15b2de6090 R15: 00007ffeffd92ed8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1da0/0x2090 fs/jfs/jfs_txnmgr.c:834
Code: 8a 48 c7 c6 00 45 c6 8a ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 40 6a 00 6a 48 e8 94 5c 19 01 48 83 c4 10 <0f> 0b e8 29 bd 92 fe 48 89 df 48 c7 c6 00 4d c6 8a e8 5a 4b cd fe
RSP: 0018:ffffc9000d2ef7e0 EFLAGS: 00010282
RAX: 1001148926ff1e00 RBX: ffff88805597b270 RCX: 0000000000080000
RDX: ffffc9000e749000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000d2ef940 R08: dffffc0000000000 R09: fffff52001a5de55
R10: fffff52001a5de55 R11: 1ffff92001a5de54 R12: 0000000000000002
R13: 0000000000000003 R14: 1ffff92000511475 R15: ffffc9000288a3aa
FS:  00007f15b0dd56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc3d3e5feb CR3: 0000000028050000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400