general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
CPU: 0 PID: 2225 Comm: ext4lazyinit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
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 fe 8b 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 e1 8b d2 ff 4c 8b 23 4d 85 e4 4c
RSP: 0018:ffffc90011e6fbc0 EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000038 RCX: ffff888118f83cc0
RDX: 0000000000000000 RSI: 000000000000063f RDI: ffffffff863ded88
RBP: ffffc90011e6fc90 R08: ffff8881419433f0 R09: 0000000000000001
R10: ffffed102236348d R11: 1ffff1102236348c R12: 1ffff11026efea79
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881419433f0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2de5ab CR3: 0000000134038000 CR4: 00000000003506b0
DR0: 0000000000000081 DR1: 0000000080000000 DR2: 0000000000000032
DR3: 7fffffffffffffff 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:3681 [inline]
 ext4_lazyinit_thread+0x663/0x1500 fs/ext4/super.c:3772
 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 fe 8b 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 e1 8b d2 ff 4c 8b 23 4d 85 e4 4c
RSP: 0018:ffffc90011e6fbc0 EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000038 RCX: ffff888118f83cc0
RDX: 0000000000000000 RSI: 000000000000063f RDI: ffffffff863ded88
RBP: ffffc90011e6fc90 R08: ffff8881419433f0 R09: 0000000000000001
R10: ffffed102236348d R11: 1ffff1102236348c R12: 1ffff11026efea79
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881419433f0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005635847b7b98 CR3: 000000010f39d000 CR4: 00000000003506b0
DR0: 0000000000000081 DR1: 0000000080000000 DR2: 0000000000000032
DR3: 7fffffffffffffff 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 fe 8b d2 ff       	call   0xffd28c1a
  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 e1 8b d2 ff       	call   0xffd28c1a
  39:	4c 8b 23             	mov    (%rbx),%r12
  3c:	4d 85 e4             	test   %r12,%r12
  3f:	4c                   	rex.WR