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
CPU: 0 PID: 8127 Comm: syz-executor.2 Not tainted 4.19.204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:qlist_move_cache+0x67/0xd0 mm/kasan/quarantine.c:275
Code: 00 00 00 eb 22 49 83 3e 00 74 7d 49 8b 46 08 4c 89 28 4d 89 6e 08 49 c7 45 00 00 00 00 00 49 01 56 10 4d 85 ff 74 56 4d 89 fd <4d> 8b 3f 4c 89 ef e8 de f5 92 ff 48 c1 e8 0c 48 c1 e0 06 4c 01 e0
RSP: 0018:ffff88809e8dfb78 EFLAGS: 00010002
RAX: ffff88809f992180 RBX: ffff88809e8dfbb0 RCX: ffffea0000000c07
RDX: 0000000000001100 RSI: ffffffff812b6e9a RDI: 0000000000000007
RBP: ffff88803e805d80 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000000000
R13: 7777777707700770 R14: ffffffff8d259308 R15: 7777777707700770
FS:  00000000017a7400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000021000000 CR3: 00000000a2fea000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 quarantine_remove_cache+0x73/0x100 mm/kasan/quarantine.c:317
 shutdown_cache+0xe/0x1e0 mm/slab_common.c:562
 kmem_cache_destroy+0x267/0x310 mm/slab_common.c:927
 p9_client_destroy+0x250/0x360 net/9p/client.c:1112
 v9fs_session_close+0x45/0x2c0 fs/9p/v9fs.c:513
 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:233
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x467a47
Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca344afd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000467a47
RDX: 00007ffca344b0ab RSI: 0000000000000002 RDI: 00007ffca344b0a0
RBP: 00007ffca344b0a0 R08: 00000000ffffffff R09: 00007ffca344ae70
R10: 00000000017a88e3 R11: 0000000000000246 R12: 00000000004bee90
R13: 00007ffca344c170 R14: 00000000017a8810 R15: 00007ffca344c1b0
Modules linked in:
---[ end trace e4d0acb692d3538a ]---
RIP: 0010:qlist_move_cache+0x67/0xd0 mm/kasan/quarantine.c:275
Code: 00 00 00 eb 22 49 83 3e 00 74 7d 49 8b 46 08 4c 89 28 4d 89 6e 08 49 c7 45 00 00 00 00 00 49 01 56 10 4d 85 ff 74 56 4d 89 fd <4d> 8b 3f 4c 89 ef e8 de f5 92 ff 48 c1 e8 0c 48 c1 e0 06 4c 01 e0
RSP: 0018:ffff88809e8dfb78 EFLAGS: 00010002
RAX: ffff88809f992180 RBX: ffff88809e8dfbb0 RCX: ffffea0000000c07
RDX: 0000000000001100 RSI: ffffffff812b6e9a RDI: 0000000000000007
RBP: ffff88803e805d80 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000000000
R13: 7777777707700770 R14: ffffffff8d259308 R15: 7777777707700770
FS:  00000000017a7400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000021000000 CR3: 00000000a2fea000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 eb                	add    %ch,%bl
   4:	22 49 83             	and    -0x7d(%rcx),%cl
   7:	3e 00 74 7d 49       	add    %dh,%ds:0x49(%rbp,%rdi,2)
   c:	8b 46 08             	mov    0x8(%rsi),%eax
   f:	4c 89 28             	mov    %r13,(%rax)
  12:	4d 89 6e 08          	mov    %r13,0x8(%r14)
  16:	49 c7 45 00 00 00 00 	movq   $0x0,0x0(%r13)
  1d:	00 
  1e:	49 01 56 10          	add    %rdx,0x10(%r14)
  22:	4d 85 ff             	test   %r15,%r15
  25:	74 56                	je     0x7d
  27:	4d 89 fd             	mov    %r15,%r13
  2a:	4d 8b 3f             	mov    (%r15),%r15 <-- trapping instruction
  2d:	4c 89 ef             	mov    %r13,%rdi
  30:	e8 de f5 92 ff       	callq  0xff92f613
  35:	48 c1 e8 0c          	shr    $0xc,%rax
  39:	48 c1 e0 06          	shl    $0x6,%rax
  3d:	4c 01 e0             	add    %r12,%rax