Tlock: ffffc90003412140: 555f7170 ffff8880 00000001 0000072c Tlock: ffffc90003412150: 0000001b 000000e6 00000010 00000120 Tlock: ffffc90003412160: 0000005e 00000140 ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:836! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 7193 Comm: syz.3.180 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 ee 8b 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 52 ce 48 01 48 83 c4 10 90 <0f> 0b e8 26 9e 66 fe 4c 89 ef 48 c7 c6 60 f6 8b 8b e8 37 56 c9 fd RSP: 0018:ffffc90006277580 EFLAGS: 00010282 RAX: 424fe2f7670bad00 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9001057c000 RSI: 000000000001b734 RDI: 000000000001b735 RBP: ffffc900062776c0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017104903 R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff92000682424 R15: ffffc90003412122 FS: 00007f5e53cbd6c0(0000) GS:ffff888126144000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7ecc45e000 CR3: 000000005a12e000 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 vfs_create+0x2c8/0x460 fs/namei.c:4202 filename_mknodat+0x3ec/0x670 fs/namei.c:5181 __do_sys_mknod fs/namei.c:5218 [inline] __se_sys_mknod+0x3a/0x150 fs/namei.c:5215 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: 0033:0x7f5e55a8ce59 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:00007f5e53cbd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007f5e55d06090 RCX: 00007f5e55a8ce59 RDX: 0000000000000001 RSI: 0000000000008100 RDI: 00002000000024c0 RBP: 00007f5e55b22e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5e55d06128 R14: 00007f5e55d06090 R15: 00007ffead8b05d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txLock+0x1cc3/0x1d10 fs/jfs/jfs_txnmgr.c:836 Code: 48 c7 c6 40 ee 8b 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 52 ce 48 01 48 83 c4 10 90 <0f> 0b e8 26 9e 66 fe 4c 89 ef 48 c7 c6 60 f6 8b 8b e8 37 56 c9 fd RSP: 0018:ffffc90006277580 EFLAGS: 00010282 RAX: 424fe2f7670bad00 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9001057c000 RSI: 000000000001b734 RDI: 000000000001b735 RBP: ffffc900062776c0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017104903 R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff92000682424 R15: ffffc90003412122 FS: 00007f5e53cbd6c0(0000) GS:ffff888126144000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7ecc466000 CR3: 000000005a12e000 CR4: 00000000003526f0