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: 112 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__lock_acquire+0xf9/0x7d40 kernel/locking/lockdep.c:5005
Code: 89 bc 24 88 00 00 00 0f 85 88 67 00 00 83 3d 39 1a 23 0d 00 0f 84 16 10 00 00 83 3d 40 c1 97 0b 00 74 36 48 89 f8 48 c1 e8 03 <42> 80 3c 00 00 74 1f 48 8b bc 24 88 00 00 00 e8 f3 28 77 00 48 8b
RSP: 0018:ffffc90002617980 EFLAGS: 00010002
RAX: 000000000000003d RBX: ffff88801970bc00 RCX: 1ffff920004c2f54
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001e8
RBP: ffffc90002617bc8 R08: dffffc0000000000 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1d162be R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4affb89000 CR3: 000000005a4f0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5754
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0xaf/0xf0 kernel/locking/spinlock.c:170
 spin_lock_irq include/linux/spinlock.h:376 [inline]
 txLazyCommit fs/jfs/jfs_txnmgr.c:2669 [inline]
 jfs_lazycommit+0x488/0xa70 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xf9/0x7d40 kernel/locking/lockdep.c:5005
Code: 89 bc 24 88 00 00 00 0f 85 88 67 00 00 83 3d 39 1a 23 0d 00 0f 84 16 10 00 00 83 3d 40 c1 97 0b 00 74 36 48 89 f8 48 c1 e8 03 <42> 80 3c 00 00 74 1f 48 8b bc 24 88 00 00 00 e8 f3 28 77 00 48 8b
RSP: 0018:ffffc90002617980 EFLAGS: 00010002
RAX: 000000000000003d RBX: ffff88801970bc00 RCX: 1ffff920004c2f54
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001e8
RBP: ffffc90002617bc8 R08: dffffc0000000000 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1d162be R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4affb89000 CR3: 000000005a4f0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	89 bc 24 88 00 00 00 	mov    %edi,0x88(%rsp)
   7:	0f 85 88 67 00 00    	jne    0x6795
   d:	83 3d 39 1a 23 0d 00 	cmpl   $0x0,0xd231a39(%rip)        # 0xd231a4d
  14:	0f 84 16 10 00 00    	je     0x1030
  1a:	83 3d 40 c1 97 0b 00 	cmpl   $0x0,0xb97c140(%rip)        # 0xb97c161
  21:	74 36                	je     0x59
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 00 00       	cmpb   $0x0,(%rax,%r8,1) <-- trapping instruction
  2f:	74 1f                	je     0x50
  31:	48 8b bc 24 88 00 00 	mov    0x88(%rsp),%rdi
  38:	00
  39:	e8 f3 28 77 00       	call   0x772931
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b