RBP: 000000000072bea0 R08: 0000000020000080 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 00000000000004a5 R14: 00000000006fb018 R15: 0000000000000023 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: 14737 Comm: syz-executor7 Not tainted 4.17.0-rc3+ #9 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:ffff880192d2f860 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8801b4444898 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801b44448a0 RBP: ffff880192d2f878 R08: fffffbfff11cc59d R09: fffffbfff11cc59c R10: ffff880192d2f878 R11: ffffffff88e62ce7 R12: 0000000000000000 R13: 0000000000000000 R14: ffff880192d2f908 R15: ffff8801b4444898 FS: 00007fe845f2b700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016d89b8 CR3: 00000001b2e21000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 00000000200001c0 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] kernfs_kill_sb+0xa0/0x350 fs/kernfs/mount.c:361 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:50 deactivate_locked_super+0x97/0x100 fs/super.c:316 kernfs_mount_ns+0x753/0x8e0 fs/kernfs/mount.c:335 sysfs_mount+0xdf/0x200 fs/sysfs/mount.c:36 mount_fs+0xae/0x328 fs/super.c:1267 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:2518 [inline] do_mount+0x564/0x3070 fs/namespace.c:2848 ksys_mount+0x12d/0x140 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3075 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007fe845f2ac68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fe845f2b6d4 RCX: 0000000000455a09 RDX: 0000000020000280 RSI: 00000000200000c0 RDI: 0000000020000000 RBP: 000000000072bea0 R08: 0000000020000080 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 00000000000004a5 R14: 00000000006fb018 R15: 0000000000000023 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: ffff880192d2f860 ---[ end trace 3175345b901ecbd1 ]---