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: 9018 Comm: syz.0.733 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ocfs2_evict_inode+0x2d05/0x40e0
Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ec d7 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 cc d7 83 fe 48 8b 3b 49 81 c7 88
RSP: 0018:ffffc90002cff340 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888108060000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002cffa70 R08: ffff88812401b177 R09: 1ffff1102480362e
R10: dffffc0000000000 R11: ffffed102480362f R12: fffff5200059fe78
R13: ffff88812401b420 R14: dffffc0000000000 R15: ffff88812401b3f8
FS:  00007f9d096aa6c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d087733e0 CR3: 0000000114e18000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 evict+0x504/0x9c0
 ocfs2_free_slot_info+0x79/0x260
 ocfs2_delete_osb+0x58/0x170
 ocfs2_dismount_volume+0x57a/0x8d0
 generic_shutdown_super+0x135/0x2c0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x425/0x4c0
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d0879038a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d096a9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 00007f9d096a9ef0 RCX: 00007f9d0879038a
RDX: 0000200000000840 RSI: 0000200000000040 RDI: 00007f9d096a9eb0
RBP: 0000200000000840 R08: 00007f9d096a9ef0 R09: 00000000000008c1
R10: 00000000000008c1 R11: 0000000000000246 R12: 0000200000000040
R13: 00007f9d096a9eb0 R14: 000000000000443a R15: 0000200000000880
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_evict_inode+0x2d05/0x40e0
Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ec d7 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 cc d7 83 fe 48 8b 3b 49 81 c7 88
RSP: 0018:ffffc90002cff340 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888108060000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002cffa70 R08: ffff88812401b177 R09: 1ffff1102480362e
R10: dffffc0000000000 R11: ffffed102480362f R12: fffff5200059fe78
R13: ffff88812401b420 R14: dffffc0000000000 R15: ffff88812401b3f8
FS:  00007f9d096aa6c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d087733e0 CR3: 0000000114e18000 CR4: 00000000000006f0
