R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
devpts: called with bogus options
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: 0 PID: 6673 Comm: syz-executor1 Not tainted 4.14.0+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c4624000 task.stack: ffff8801d6030000
RIP: 0010:__list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51
RSP: 0018:ffff8801d6037940 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801c4ab5598 RDI: ffff8801c4ab55a0
RBP: ffff8801d6037958 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff8726cd60 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8801c9d10e00 R15: ffff8801c4ab5598
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7716b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000008090020 CR3: 00000001cdf24000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
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]
 unregister_shrinker+0x79/0x300 mm/vmscan.c:301
 deactivate_locked_super+0x64/0xd0 fs/super.c:308
 mount_nodev+0xdf/0x100 fs/super.c:1168
 devpts_mount+0x2c/0x40 fs/devpts/inode.c:481
 mount_fs+0x66/0x2d0 fs/super.c:1223
 vfs_kern_mount.part.26+0xc6/0x4a0 fs/namespace.c:1037
 vfs_kern_mount fs/namespace.c:2509 [inline]
 do_new_mount fs/namespace.c:2512 [inline]
 do_mount+0xea4/0x2bb0 fs/namespace.c:2841
 C_SYSC_mount fs/compat.c:195 [inline]
 compat_SyS_mount+0xd0/0x1070 fs/compat.c:160
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125
RIP: 0023:0xf7f1ac79
RSP: 002b:00000000f771601c EFLAGS: 00000296 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 0000000020321ff8 RCX: 00000000200ba000
RDX: 0000000020897ff9 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
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: ffff8801d6037940
---[ end trace 03b48b34a9acdd34 ]---