ocfs2: Readonly device (7,0) detected. Cluster services will not be used for this mount. Recovery will be skipped.
ocfs2: Mounting device (7,0) on (node local, slot 65535) with ordered data mode.
ocfs2: Unmounting device (7,0) on (node local)
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 5864 Comm: syz-executor299 Not tainted 6.17.0-rc2-next-20250818-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ocfs2_clear_inode fs/ocfs2/inode.c:1284 [inline]
RIP: 0010:ocfs2_evict_inode+0x2d05/0x40e0 fs/ocfs2/inode.c:1296
Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 cc ae 83 fe 4d 01 f4 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 ac ae 83 fe 48 8b 3b 49 81 c7 88
RSP: 0018:ffffc900041bf1a0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880338d1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900041bf8d0 R08: ffff88807fe430b7 R09: 1ffff1100ffc8616
R10: dffffc0000000000 R11: ffffed100ffc8617 R12: fffff52000837e44
R13: ffff88807fe43360 R14: dffffc0000000000 R15: ffff88807fe43338
FS:  0000000000000000(0000) GS:ffff888125b0b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a49e04f700 CR3: 000000000e136000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 evict+0x504/0x9c0 fs/inode.c:810
 __ocfs2_free_slot_info fs/ocfs2/slot_map.c:307 [inline]
 ocfs2_free_slot_info+0x79/0x260 fs/ocfs2/slot_map.c:443
 ocfs2_delete_osb+0x58/0x170 fs/ocfs2/super.c:2448
 ocfs2_dismount_volume+0x57a/0x8d0 fs/ocfs2/super.c:1884
 generic_shutdown_super+0x135/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1723
 deactivate_locked_super+0xb9/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1375
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:961
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f27bfaa2089
Code: Unable to access opcode bytes at 0x7f27bfaa205f.
RSP: 002b:00007ffd5f66a378 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f27bfaa2089
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f27bfb22390 R08: ffffffffffffffb8 R09: 0000000000004466
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f27bfb22390
R13: 0000000000000000 R14: 00007f27bfb23100 R15: 00007f27bfa70340
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_clear_inode fs/ocfs2/inode.c:1284 [inline]
RIP: 0010:ocfs2_evict_inode+0x2d05/0x40e0 fs/ocfs2/inode.c:1296
Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 cc ae 83 fe 4d 01 f4 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 ac ae 83 fe 48 8b 3b 49 81 c7 88
RSP: 0018:ffffc900041bf1a0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880338d1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900041bf8d0 R08: ffff88807fe430b7 R09: 1ffff1100ffc8616
R10: dffffc0000000000 R11: ffffed100ffc8617 R12: fffff52000837e44
R13: ffff88807fe43360 R14: dffffc0000000000 R15: ffff88807fe43338
FS:  0000000000000000(0000) GS:ffff888125a0b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556f375660 CR3: 0000000030876000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	02 00                	add    (%rax),%al
   2:	00 48 89             	add    %cl,-0x77(%rax)
   5:	d8 48 c1             	fmuls  -0x3f(%rax)
   8:	e8 03 42 80 3c       	call   0x3c804210
   d:	30 00                	xor    %al,(%rax)
   f:	74 08                	je     0x19
  11:	48 89 df             	mov    %rbx,%rdi
  14:	e8 cc ae 83 fe       	call   0xfe83aee5
  19:	4d 01 f4             	add    %r14,%r12
  1c:	48 8b 1b             	mov    (%rbx),%rbx
  1f:	48 83 c3 08          	add    $0x8,%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 ac ae 83 fe       	call   0xfe83aee5
  39:	48 8b 3b             	mov    (%rbx),%rdi
  3c:	49                   	rex.WB
  3d:	81                   	.byte 0x81
  3e:	c7                   	(bad)
  3f:	88                   	.byte 0x88