syzbot

Locker's tblock: ffffc90002669310: 02669310 ffffc900 02669310 ffffc900
Locker's tblock: ffffc90002669320: 00000004 0000001c 00000007 00000000
Tlock: ffffc9000288a0d8: 00010005 20208040 302f1ba0 ffff8880
Tlock: ffffc9000288a0e8: 723616b0 ffff8880 03140000 05002000
Tlock: ffffc9000288a0f8: 06030a00 0000020d 00000000 00000000
Tlock: ffffc9000288a108: 00000000 00000000 00000000 00000000
Tlock: ffffc9000288a118: 00000000 00000000
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:834!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4274 Comm: syz-executor358 Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:txLock+0x1ec8/0x21a0 fs/jfs/jfs_txnmgr.c:834
Code: 8b 48 c7 c6 80 9d 46 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 20 6a 00 6a 48 e8 9c e2 2f 01 48 83 c4 10 <0f> 0b e8 31 30 76 fe 4c 89 f7 48 c7 c6 80 a5 46 8b e8 02 be b5 fe
RSP: 0018:ffffc90003d36ec0 EFLAGS: 00010286
RAX: 1c6c73bd0b14ec00 RBX: 0000000000000010 RCX: ffff888079628000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003d37010 R08: ffffffff816e804c R09: fffff520007a6d01
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200051141b
R13: ffff8880723cdc80 R14: 000000000000001b R15: ffffc9000288a0da
FS:  00007f4b194b16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b194b2000 CR3: 00000000197e6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dtSplitRoot+0x429/0x18e0 fs/jfs/jfs_dtree.c:1927
 dtSplitUp fs/jfs/jfs_dtree.c:993 [inline]
 dtInsert+0x12b9/0x6d10 fs/jfs/jfs_dtree.c:871
 jfs_create+0x7b2/0xbb0 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0x12f1/0x2e60 fs/namei.c:3780
 do_filp_open+0x230/0x480 fs/namei.c:3810
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_open fs/open.c:1342 [inline]
 __se_sys_open fs/open.c:1338 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1338
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4b194f4c99
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4b194b1218 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f4b195826c8 RCX: 00007f4b194f4c99
RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000200000000400
RBP: 00007f4b195826c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000100
R13: 0030656c69662f2e R14: 0000200000000080 R15: 00007f4b1954906b
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1ec8/0x21a0 fs/jfs/jfs_txnmgr.c:834
Code: 8b 48 c7 c6 80 9d 46 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 20 6a 00 6a 48 e8 9c e2 2f 01 48 83 c4 10 <0f> 0b e8 31 30 76 fe 4c 89 f7 48 c7 c6 80 a5 46 8b e8 02 be b5 fe
RSP: 0018:ffffc90003d36ec0 EFLAGS: 00010286
RAX: 1c6c73bd0b14ec00 RBX: 0000000000000010 RCX: ffff888079628000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003d37010 R08: ffffffff816e804c R09: fffff520007a6d01
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200051141b
R13: ffff8880723cdc80 R14: 000000000000001b R15: ffffc9000288a0da
FS:  00007f4b194b16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b194b2000 CR3: 00000000197e6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400