Tlock: ffffc900035012d0: 00030000 80018804 1dfd49c0 ffff8880 Tlock: ffffc900035012e0: 5f5817c0 ffff8880 01140000 07002000 Tlock: ffffc900035012f0: 00000104 00000000 00000000 00000000 Tlock: ffffc90003501300: 00000000 00000000 00000000 00000000 Tlock: ffffc90003501310: 00000000 00000000 ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:835! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6605 Comm: syz.0.94 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:txLock+0x1c7a/0x1cc0 fs/jfs/jfs_txnmgr.c:835 Code: 48 c7 c6 40 e4 8a 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 7b 69 4a 01 48 83 c4 10 90 <0f> 0b e8 df bc 6f fe 4c 89 ff 48 c7 c6 60 ec 8a 8b e8 c0 f8 d2 fd RSP: 0018:ffffc90004a5f560 EFLAGS: 00010286 RAX: 18681076fb533000 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc90006a29000 RSI: 000000000001abbd RDI: 000000000001abbe RBP: ffffc90004a5f698 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed101712491b R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff920006a025a R15: ffffc900035012d2 FS: 00007fa921f4d6c0(0000) GS:ffff888126432000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa921f4cff8 CR3: 000000003b040000 CR4: 00000000003526f0 Call Trace: dtSplitRoot+0x36f/0x16c0 fs/jfs/jfs_dtree.c:1927 dtSplitUp fs/jfs/jfs_dtree.c:993 [inline] dtInsert+0xf19/0x5f10 fs/jfs/jfs_dtree.c:871 jfs_mknod+0x6bd/0x9d0 fs/jfs/namei.c:1413 vfs_mknod+0x44e/0x620 fs/namei.c:5098 filename_mknodat+0x3cf/0x670 fs/namei.c:-1 __do_sys_mknod fs/namei.c:5185 [inline] __se_sys_mknod+0x3a/0x150 fs/namei.c:5182 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa923d1c819 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:00007fa921f4d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007fa923f96090 RCX: 00007fa923d1c819 RDX: 0000000000000700 RSI: 000000000000cc48 RDI: 0000200000000000 RBP: 00007fa923db2c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa923f96128 R14: 00007fa923f96090 R15: 00007ffd184e2338 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txLock+0x1c7a/0x1cc0 fs/jfs/jfs_txnmgr.c:835 Code: 48 c7 c6 40 e4 8a 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 7b 69 4a 01 48 83 c4 10 90 <0f> 0b e8 df bc 6f fe 4c 89 ff 48 c7 c6 60 ec 8a 8b e8 c0 f8 d2 fd RSP: 0018:ffffc90004a5f560 EFLAGS: 00010286 RAX: 18681076fb533000 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc90006a29000 RSI: 000000000001abbd RDI: 000000000001abbe RBP: ffffc90004a5f698 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed101712491b R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff920006a025a R15: ffffc900035012d2 FS: 00007fa921f4d6c0(0000) GS:ffff888126432000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa921f4cff8 CR3: 000000003b040000 CR4: 00000000003526f0