general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
CPU: 1 PID: 20979 Comm: ext4lazyinit Not tainted 6.1.134-syzkaller-00012-g646380b087a5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:__ext4_journal_get_write_access+0xb0/0x6c0 fs/ext4/ext4_jbd2.c:231
Code: 8e ff 49 8d 5f 30 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 be b0 d2 ff 48 8b 1b 48 83 c3 38 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 a1 b0 d2 ff 4c 8b 23 4d 85 e4 4c
RSP: 0018:ffffc90000d67bc0 EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000038 RCX: ffff8881130b0000
RDX: 0000000000000000 RSI: 000000000000063f RDI: ffffffff863d1e0f
RBP: ffffc90000d67c90 R08: ffff888144be69d8 R09: 0000000000000001
R10: ffffed1021f9af32 R11: 1ffff11021f9af31 R12: 1ffff11025923079
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888144be69d8
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200001000000 CR3: 000000013097c000 CR4: 00000000003506a0
DR0: 0000080000001081 DR1: 0000000000000007 DR2: fffffffffffffffd
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_init_inode_table+0x3fa/0x7b0 fs/ext4/ialloc.c:1598
 ext4_run_li_request fs/ext4/super.c:3671 [inline]
 ext4_lazyinit_thread+0x663/0x1500 fs/ext4/super.c:3762
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__ext4_journal_get_write_access+0xb0/0x6c0 fs/ext4/ext4_jbd2.c:231
Code: 8e ff 49 8d 5f 30 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 be b0 d2 ff 48 8b 1b 48 83 c3 38 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 a1 b0 d2 ff 4c 8b 23 4d 85 e4 4c
RSP: 0018:ffffc90000d67bc0 EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000038 RCX: ffff8881130b0000
RDX: 0000000000000000 RSI: 000000000000063f RDI: ffffffff863d1e0f
RBP: ffffc90000d67c90 R08: ffff888144be69d8 R09: 0000000000000001
R10: ffffed1021f9af32 R11: 1ffff11021f9af31 R12: 1ffff11025923079
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888144be69d8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000417030 CR3: 0000000006e0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8e ff                	mov    %edi,%?
   2:	49 8d 5f 30          	lea    0x30(%r15),%rbx
   6:	48 89 d8             	mov    %rbx,%rax
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  12:	74 08                	je     0x1c
  14:	48 89 df             	mov    %rbx,%rdi
  17:	e8 be b0 d2 ff       	call   0xffd2b0da
  1c:	48 8b 1b             	mov    (%rbx),%rbx
  1f:	48 83 c3 38          	add    $0x38,%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 a1 b0 d2 ff       	call   0xffd2b0da
  39:	4c 8b 23             	mov    (%rbx),%r12
  3c:	4d 85 e4             	test   %r12,%r12
  3f:	4c                   	rex.WR