9pnet_virtio: no channels available for device H¨
VFS: Busy inodes after unmount of ramfs. Self-destruct in 5 seconds.  Have a nice day...
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 6712 Comm: syz-executor0 Not tainted 4.9.63-g44a3afc #92
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d8d49800 task.stack: ffff8801d1400000
RIP: 0010:[<ffffffff8123df9c>]  [<ffffffff8123df9c>] __lock_acquire+0x9fc/0x3640 kernel/locking/lockdep.c:3224
RSP: 0018:ffff8801d14075b0  EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000018 RSI: 0000000000000000 RDI: 00000000000000c0
RBP: ffff8801d1407770 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801d8d49800 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000000 R15: 00000000000000c0
FS:  00007fa742e62700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 00000001d0d7b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff84c52ca0 ffffffff84fd8880 ffffffff84c52ca4 000000000007ddc0
 ffffffff85720cc0 ffffffff8536e240 ffffffff85398720 ffff8801d1407620
 ffffffff81236896 ffff8801d8d4a0d8 ffff8801d8d4a0d8 ffff8801d8d4a0b0
Call Trace:
 [<ffffffff8124161e>] lock_acquire+0x12e/0x410 kernel/locking/lockdep.c:3756
 [<ffffffff838acb06>] __raw_spin_lock include/linux/spinlock_api_smp.h:144 [inline]
 [<ffffffff838acb06>] _raw_spin_lock+0x36/0x50 kernel/locking/spinlock.c:151
 [<ffffffff81be93f6>] spin_lock include/linux/spinlock.h:302 [inline]
 [<ffffffff81be93f6>] inode_free_security security/selinux/hooks.c:343 [inline]
 [<ffffffff81be93f6>] selinux_inode_free_security+0xc6/0x1b0 security/selinux/hooks.c:2845
 [<ffffffff81bd0df0>] security_inode_free+0x50/0x90 security/security.c:356
 [<ffffffff815c9cce>] __destroy_inode+0x2e/0x220 fs/inode.c:235
 [<ffffffff815c9f0e>] destroy_inode+0x4e/0x120 fs/inode.c:262
 [<ffffffff815ca309>] evict+0x329/0x4f0 fs/inode.c:570
 [<ffffffff815cadbb>] iput_final fs/inode.c:1516 [inline]
 [<ffffffff815cadbb>] iput+0x47b/0x900 fs/inode.c:1543
 [<ffffffff816466b1>] fsnotify_detach_mark+0x251/0x2f0 fs/notify/mark.c:170
 [<ffffffff81647a2c>] fsnotify_detach_group_marks+0x5c/0xd0 fs/notify/mark.c:506
 [<ffffffff81645432>] fsnotify_destroy_group+0x62/0x120 fs/notify/group.c:70
 [<ffffffff8164a8f7>] inotify_release+0x37/0x50 fs/notify/inotify/inotify_user.c:282
 [<ffffffff815757dc>] __fput+0x28c/0x6e0 fs/file_table.c:208
 [<ffffffff81575cb5>] ____fput+0x15/0x20 fs/file_table.c:244
 [<ffffffff81197675>] task_work_run+0x115/0x190 kernel/task_work.c:116
 [<ffffffff8113e507>] exit_task_work include/linux/task_work.h:21 [inline]
 [<ffffffff8113e507>] do_exit+0x7e7/0x2a40 kernel/exit.c:833
 [<ffffffff81144c18>] do_group_exit+0x108/0x320 kernel/exit.c:937
 [<ffffffff81167a44>] get_signal+0x4d4/0x14e0 kernel/signal.c:2315
 [<ffffffff81052c87>] do_signal+0x87/0x1a00 arch/x86/kernel/signal.c:807
 [<ffffffff81003a31>] exit_to_usermode_loop+0xe1/0x120 arch/x86/entry/common.c:156
 [<ffffffff81006340>] prepare_exit_to_usermode arch/x86/entry/common.c:190 [inline]
 [<ffffffff81006340>] syscall_return_slowpath+0x1a0/0x1e0 arch/x86/entry/common.c:259
 [<ffffffff838ad7a6>] entry_SYSCALL_64_fastpath+0xc4/0xc6
Code: 25 28 00 00 00 0f 85 a4 21 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c9 24 00 00 49 81 3f e0 2c c5 84 41 bd 00 00 
RIP  [<ffffffff8123df9c>] __lock_acquire+0x9fc/0x3640 kernel/locking/lockdep.c:3224
 RSP <ffff8801d14075b0>
---[ end trace 2c9a6e016abe26dc ]---