Tlock: ffffc90003342218: 00000108 00000730 00000000 00000000 Tlock: ffffc90003342228: 00000000 00000000 00000000 00000000 Tlock: ffffc90003342238: 00000000 00000000 ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:836! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 9541 Comm: syz.3.407 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:txLock+0x1cc3/0x1d10 fs/jfs/jfs_txnmgr.c:836 Code: 48 c7 c6 40 6e 6b 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 08 6a 00 6a 48 e8 72 20 48 01 48 83 c4 10 90 <0f> 0b e8 d6 f7 6b fe 4c 89 ef 48 c7 c6 60 76 6b 8b e8 27 a1 cf fd RSP: 0018:ffffc9000477f100 EFLAGS: 00010286 RAX: 061f2c7a04576100 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9000ffd7000 RSI: 000000000001b29f RDI: 000000000001b2a0 RBP: ffffc9000477f240 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124923 R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff9200066843f R15: ffffc900033421fa FS: 00007ff47b0fd6c0(0000) GS:ffff8881264a1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff47cf1a540 CR3: 000000003cb24000 CR4: 00000000003526f0 Call Trace: dtSplitRoot+0x38d/0x1900 fs/jfs/jfs_dtree.c:1924 dtSplitUp fs/jfs/jfs_dtree.c:990 [inline] dtInsert+0xedd/0x5cb0 fs/jfs/jfs_dtree.c:868 jfs_create+0x730/0xae0 fs/jfs/namei.c:138 lookup_open fs/namei.c:4511 [inline] open_last_lookups fs/namei.c:4611 [inline] path_openat+0x17e4/0x38d0 fs/namei.c:4855 do_file_open+0x23e/0x4a0 fs/namei.c:4887 do_sys_openat2+0x113/0x200 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0x8f/0xc0 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff47cecce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff47b0fd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007ff47d146090 RCX: 00007ff47cecce59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000580 RBP: 00007ff47cf62d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff47d146128 R14: 00007ff47d146090 R15: 00007fff6e71a8c8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txLock+0x1cc3/0x1d10 fs/jfs/jfs_txnmgr.c:836 Code: 48 c7 c6 40 6e 6b 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 08 6a 00 6a 48 e8 72 20 48 01 48 83 c4 10 90 <0f> 0b e8 d6 f7 6b fe 4c 89 ef 48 c7 c6 60 76 6b 8b e8 27 a1 cf fd RSP: 0018:ffffc9000477f100 EFLAGS: 00010286 RAX: 061f2c7a04576100 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9000ffd7000 RSI: 000000000001b29f RDI: 000000000001b2a0 RBP: ffffc9000477f240 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124923 R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff9200066843f R15: ffffc900033421fa FS: 00007ff47b0fd6c0(0000) GS:ffff8881264a1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff47cf1a540 CR3: 000000003cb24000 CR4: 00000000003526f0