QAT: Invalid ioctl kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 29794 Comm: syz-executor7 Not tainted 4.14.0-rc7+ #161 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cd33e380 task.stack: ffff8801d1430000 RIP: 0010:__list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51 RSP: 0018:ffff8801d1437b38 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801d5a23318 RDI: ffff8801d5a23320 RBP: ffff8801d1437b50 R08: ffffffff818d1471 R09: 0000000000000004 R10: ffff8801d14379a0 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 1ffff1003a286f8b R15: ffff8801d5a23318 FS: 000000000294f940(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020fc7000 CR3: 00000001c5709000 CR4: 00000000001406e0 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] unregister_shrinker+0x79/0x300 mm/vmscan.c:301 deactivate_locked_super+0x64/0xd0 fs/super.c:308 deactivate_super+0x141/0x1b0 fs/super.c:340 cleanup_mnt+0xb2/0x150 fs/namespace.c:1173 __cleanup_mnt+0x16/0x20 fs/namespace.c:1180 task_work_run+0x199/0x270 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath+0x42f/0x510 arch/x86/entry/common.c:266 entry_SYSCALL_64_fastpath+0xbc/0xbe RIP: 0033:0x455277 RSP: 002b:0000000000a6d888 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000064 RCX: 0000000000455277 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000a6e9f0 RBP: 0000000000a6e9f0 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000000206 R12: 0000000002959ce0 R13: 0000000000000000 R14: 000000000006125e R15: 0000000000000010 Code: 00 00 00 00 ad de 49 39 c4 74 66 48 b8 00 02 00 00 00 00 ad de 48 89 da 48 39 c3 74 65 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 75 7b 48 8b 13 48 39 f2 75 57 49 8d 7c 24 08 48 b8 RIP: __list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51 RSP: ffff8801d1437b38 ---[ end trace a916bc941f915b43 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled