syzbot

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: 0 PID: 4244 Comm: jbd2/loop0-29 Not tainted 6.1.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ocfs2_handle_error+0x2c/0x250 fs/ocfs2/super.c:2524
Code: 57 41 56 41 55 41 54 53 50 49 89 fc 48 bd 00 00 00 00 00 fc ff df e8 13 63 1b fe 49 8d 9c 24 78 06 00 00 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 a6 e4 72 fe 48 8b 1b 4c 8d b3 00 01
RSP: 0018:ffffc90003d6f660 EFLAGS: 00010206
RAX: 00000000000000cf RBX: 0000000000000678 RCX: ffff888030468000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff816e64bc R09: fffffbfff1d34036
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffffff8b4af640 R14: 1ffff920007adedc R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f66dacde58 CR3: 000000000d08e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ocfs2_error+0x13c/0x190 fs/ocfs2/super.c:2567
 ocfs2_abort_trigger+0x112/0x150 fs/ocfs2/journal.c:576
 jbd2_journal_commit_transaction+0x16fb/0x6a50 fs/jbd2/commit.c:623
 kjournald2+0x45e/0x840 fs/jbd2/journal.c:210
 kthread+0x28d/0x320 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+0x2c/0x250 fs/ocfs2/super.c:2524
Code: 57 41 56 41 55 41 54 53 50 49 89 fc 48 bd 00 00 00 00 00 fc ff df e8 13 63 1b fe 49 8d 9c 24 78 06 00 00 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 a6 e4 72 fe 48 8b 1b 4c 8d b3 00 01
RSP: 0018:ffffc90003d6f660 EFLAGS: 00010206
RAX: 00000000000000cf RBX: 0000000000000678 RCX: ffff888030468000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff816e64bc R09: fffffbfff1d34036
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffffff8b4af640 R14: 1ffff920007adedc R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f66dacde58 CR3: 000000000d08e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	57                   	push   %rdi
   1:	41 56                	push   %r14
   3:	41 55                	push   %r13
   5:	41 54                	push   %r12
   7:	53                   	push   %rbx
   8:	50                   	push   %rax
   9:	49 89 fc             	mov    %rdi,%r12
   c:	48 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbp
  13:	fc ff df
  16:	e8 13 63 1b fe       	call   0xfe1b632e
  1b:	49 8d 9c 24 78 06 00 	lea    0x678(%r12),%rbx
  22:	00
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	48 89 df             	mov    %rbx,%rdi
  33:	e8 a6 e4 72 fe       	call   0xfe72e4de
  38:	48 8b 1b             	mov    (%rbx),%rbx
  3b:	4c                   	rex.WR
  3c:	8d                   	.byte 0x8d
  3d:	b3 00                	mov    $0x0,%bl
  3f:	01                   	.byte 0x1