XFS (nullb0): Invalid superblock magic number
BUG: MAX_STACK_TRACE_ENTRIES too low!
turning off the locking correctness validator.
CPU: 1 PID: 16674 Comm: syz-executor015 Not tainted 5.2.0+ #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x2f8 lib/dump_stack.c:113
 save_trace kernel/locking/lockdep.c:473 [inline]
 mark_lock+0x4af/0x1800 kernel/locking/lockdep.c:3583
 mark_usage kernel/locking/lockdep.c:3505 [inline]
 __lock_acquire+0x6af/0x1ce0 kernel/locking/lockdep.c:3834
 lock_acquire+0x158/0x250 kernel/locking/lockdep.c:4413
 flush_workqueue+0x17e/0x13f0 kernel/workqueue.c:2774
 drain_workqueue+0xb9/0x500 kernel/workqueue.c:2939
 destroy_workqueue+0x2b/0xe00 kernel/workqueue.c:4320
 xfs_destroy_mount_workqueues+0xfd/0x130 fs/xfs/xfs_super.c:886
 xfs_fs_fill_super+0x11c8/0x1450 fs/xfs/xfs_super.c:1775
 mount_bdev+0x31c/0x440 fs/super.c:1346
 xfs_fs_mount+0x34/0x40 fs/xfs/xfs_super.c:1823
 legacy_get_tree+0xf9/0x1a0 fs/fs_context.c:661
 vfs_get_tree+0x8f/0x360 fs/super.c:1476
 do_new_mount fs/namespace.c:2792 [inline]
 do_mount+0x1813/0x2730 fs/namespace.c:3112
 ksys_mount+0xcc/0x100 fs/namespace.c:3321
 __do_sys_mount fs/namespace.c:3335 [inline]
 __se_sys_mount fs/namespace.c:3332 [inline]
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3332
 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4466d9
Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8ab0175db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004466d9
RDX: 0000000020000300 RSI: 0000000020000280 RDI: 0000000020000240
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007ffe6ab058ef R14: 00007f8ab01769c0 R15: 20c49ba5e353f7cf