general protection fault, probably for non-canonical address 0xdffffc000000003d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000001e8-0x00000000000001ef]
CPU: 1 PID: 107 Comm: jfsCommit Not tainted 6.1.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__lock_acquire+0xe8/0x7c50 kernel/locking/lockdep.c:4919
Code: 42 0f b6 04 00 84 c0 0f 85 53 65 00 00 83 3d 12 a2 bc 0c 00 0f 84 c0 27 00 00 83 3d 81 a3 3c 0b 00 74 29 48 89 d8 48 c1 e8 03 <42> 80 3c 00 00 74 12 48 89 df e8 89 f3 6d 00 49 b8 00 00 00 00 00
RSP: 0000:ffffc90002cc79a0 EFLAGS: 00010002
RAX: 000000000000003d RBX: 00000000000001e8 RCX: 1ffff92000598f58
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001e8
RBP: ffffc90002cc7bf0 R08: dffffc0000000000 R09: 0000000000000001
R10: fffffbfff1c3ea96 R11: 1ffffffff1c3ea95 R12: ffff88801afb0000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe6d9f35000 CR3: 000000005e82d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1b4/0x490 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0x9f/0xe0 kernel/locking/spinlock.c:170
 spin_lock_irq include/linux/spinlock.h:376 [inline]
 txLazyCommit fs/jfs/jfs_txnmgr.c:2668 [inline]
 jfs_lazycommit+0x486/0xa50 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xe8/0x7c50 kernel/locking/lockdep.c:4919
Code: 42 0f b6 04 00 84 c0 0f 85 53 65 00 00 83 3d 12 a2 bc 0c 00 0f 84 c0 27 00 00 83 3d 81 a3 3c 0b 00 74 29 48 89 d8 48 c1 e8 03 <42> 80 3c 00 00 74 12 48 89 df e8 89 f3 6d 00 49 b8 00 00 00 00 00
RSP: 0000:ffffc90002cc79a0 EFLAGS: 00010002
RAX: 000000000000003d RBX: 00000000000001e8 RCX: 1ffff92000598f58
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001e8
RBP: ffffc90002cc7bf0 R08: dffffc0000000000 R09: 0000000000000001
R10: fffffbfff1c3ea96 R11: 1ffffffff1c3ea95 R12: ffff88801afb0000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe6d9f35000 CR3: 000000005e82d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	42 0f b6 04 00       	movzbl (%rax,%r8,1),%eax
   5:	84 c0                	test   %al,%al
   7:	0f 85 53 65 00 00    	jne    0x6560
   d:	83 3d 12 a2 bc 0c 00 	cmpl   $0x0,0xcbca212(%rip)        # 0xcbca226
  14:	0f 84 c0 27 00 00    	je     0x27da
  1a:	83 3d 81 a3 3c 0b 00 	cmpl   $0x0,0xb3ca381(%rip)        # 0xb3ca3a2
  21:	74 29                	je     0x4c
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 00 00       	cmpb   $0x0,(%rax,%r8,1) <-- trapping instruction
  2f:	74 12                	je     0x43
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 89 f3 6d 00       	call   0x6df3c2
  39:	49                   	rex.WB
  3a:	b8 00 00 00 00       	mov    $0x0,%eax