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:
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 16398 Comm: syz-executor4 Not tainted 4.16.0+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_del_entry_valid+0x84/0xf3 lib/list_debug.c:51
RSP: 0018:ffff88019fc67618 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8801b249c918 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801b249c920
RBP: ffff88019fc67630 R08: fffffbfff118c091 R09: fffffbfff118c090
R10: ffff88019fc67630 R11: ffffffff88c60487 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88019fc676c0 R15: ffff8801b249c918
 should_failslab+0x124/0x180 mm/failslab.c:32
FS:  00007feb997c4700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000
 slab_pre_alloc_hook mm/slab.h:422 [inline]
 slab_alloc mm/slab.c:3366 [inline]
 __do_kmalloc mm/slab.c:3704 [inline]
 __kmalloc+0x2c8/0x760 mm/slab.c:3715
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff0a9baff8 CR3: 00000001c507b000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 00000000200003c0 DR2: 0000000000000000
 kmalloc include/linux/slab.h:517 [inline]
 kzalloc include/linux/slab.h:701 [inline]
 register_shrinker+0x121/0x300 mm/vmscan.c:268
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 __list_del_entry include/linux/list.h:117 [inline]
 list_del include/linux/list.h:125 [inline]
 kernfs_kill_sb+0xa0/0x350 fs/kernfs/mount.c:361
 sget_userns+0xc78/0xf20 fs/super.c:520
 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:50
 deactivate_locked_super+0x97/0x100 fs/super.c:312
 sget_userns+0xc9d/0xf20 fs/super.c:522
 sget+0x10b/0x150 fs/super.c:557
 mount_nodev+0x33/0x110 fs/super.c:1160
 shmem_mount+0x2c/0x40 mm/shmem.c:3988
 mount_fs+0xae/0x328 fs/super.c:1222
 vfs_kern_mount.part.34+0xd4/0x4d0 fs/namespace.c:1037
 vfs_kern_mount fs/namespace.c:1027 [inline]
 do_new_mount fs/namespace.c:2517 [inline]
 do_mount+0x564/0x3070 fs/namespace.c:2847
 kernfs_mount_ns+0x13d/0x8e0 fs/kernfs/mount.c:320
 sysfs_mount+0xdf/0x200 fs/sysfs/mount.c:36
 mount_fs+0xae/0x328 fs/super.c:1222
 vfs_kern_mount.part.34+0xd4/0x4d0 fs/namespace.c:1037
 ksys_mount+0x12d/0x140 fs/namespace.c:3063
 SYSC_mount fs/namespace.c:3077 [inline]
 SyS_mount+0x35/0x50 fs/namespace.c:3074
 vfs_kern_mount fs/namespace.c:1027 [inline]
 do_new_mount fs/namespace.c:2517 [inline]
 do_mount+0x564/0x3070 fs/namespace.c:2847
 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4552d9
RSP: 002b:00007fcd5c28dc68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
 ksys_mount+0x12d/0x140 fs/namespace.c:3063
RAX: ffffffffffffffda RBX: 00007fcd5c28e6d4 RCX: 00000000004552d9
RDX: 0000000020000080 RSI: 0000000020000280 RDI: 0000000020000040
 SYSC_mount fs/namespace.c:3077 [inline]
 SyS_mount+0x35/0x50 fs/namespace.c:3074
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000000003fa R14: 00000000006f9010 R15: 000000000000001f
 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4552d9
RSP: 002b:00007feb997c3c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007feb997c46d4 RCX: 00000000004552d9
RDX: 0000000020000140 RSI: 0000000020000100 RDI: 00000000200000c0
RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000000003fa R14: 00000000006f9010 R15: 0000000000000021
Code: c5 0f 84 cc 00 00 00 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 a5 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 5f 49 8b 14 24 48 39 da 0f 85 ba 00 00 00 48 b8 
RIP: __list_del_entry_valid+0x84/0xf3 lib/list_debug.c:51 RSP: ffff88019fc67618
---[ end trace f49c12ea7f7bf78b ]---