(jbd2/loop4-29,7876,0):ocfs2_abort_trigger:596 ERROR: ocfs2_abort_trigger called by JBD2.  bh = 0xffff888054f71e80, bh->b_blocknr = 16969
OCFS2: ERROR (device (efault)): void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *, struct buffer_head *): JBD2 has aborted our journal, ocfs2 cannot continue
general protection fault, probably for non-canonical address 0xdffffc00000000cf: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000678-0x000000000000067f]
CPU: 1 PID: 7876 Comm: jbd2/loop4-29 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:ocfs2_handle_error+0x2a/0x250 fs/ocfs2/super.c:2532
Code: 55 41 57 41 56 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f4 41 5e f7 4c 8d b3 78 06 00 00 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 17 4e af f7 4d 8b 26 4d 8d b4 24
RSP: 0018:ffffc9001bf27768 EFLAGS: 00010206
RAX: 00000000000000cf RBX: 0000000000000000 RCX: ffff8880658d0000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9001bf278b0 R08: ffffc9001bf274a7 R09: 1ffff920037e4e94
R10: dffffc0000000000 R11: fffff520037e4e95 R12: ffffffff8acc4ec0
R13: dffffc0000000000 R14: 0000000000000678 R15: 1ffff920037e4efc
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb22ff8 CR3: 000000005bcdf000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ocfs2_error+0x13a/0x1a0 fs/ocfs2/super.c:2575
 ocfs2_abort_trigger+0x108/0x140 fs/ocfs2/journal.c:598
 jbd2_journal_commit_transaction+0x137f/0x5f60 fs/jbd2/commit.c:623
 kjournald2+0x427/0x820 fs/jbd2/journal.c:210
 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:ocfs2_handle_error+0x2a/0x250 fs/ocfs2/super.c:2532
Code: 55 41 57 41 56 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f4 41 5e f7 4c 8d b3 78 06 00 00 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 17 4e af f7 4d 8b 26 4d 8d b4 24
RSP: 0018:ffffc9001bf27768 EFLAGS: 00010206
RAX: 00000000000000cf RBX: 0000000000000000 RCX: ffff8880658d0000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9001bf278b0 R08: ffffc9001bf274a7 R09: 1ffff920037e4e94
R10: dffffc0000000000 R11: fffff520037e4e95 R12: ffffffff8acc4ec0
R13: dffffc0000000000 R14: 0000000000000678 R15: 1ffff920037e4efc
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3b019ea2f8 CR3: 000000005bcdf000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	55                   	push   %rbp
   1:	41 57                	push   %r15
   3:	41 56                	push   %r14
   5:	41 55                	push   %r13
   7:	41 54                	push   %r12
   9:	53                   	push   %rbx
   a:	48 89 fb             	mov    %rdi,%rbx
   d:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
  14:	fc ff df
  17:	e8 f4 41 5e f7       	call   0xf75e4210
  1c:	4c 8d b3 78 06 00 00 	lea    0x678(%rbx),%r14
  23:	4c 89 f0             	mov    %r14,%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:	4c 89 f7             	mov    %r14,%rdi
  34:	e8 17 4e af f7       	call   0xf7af4e50
  39:	4d 8b 26             	mov    (%r14),%r12
  3c:	4d                   	rex.WRB
  3d:	8d                   	.byte 0x8d
  3e:	b4 24                	mov    $0x24,%ah