RBP: 00007f39b6244ca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00007ffdc1169b3f R14: 00007f39b62459c0 R15: 000000000119bf8c 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 Modules linked in: CPU: 1 PID: 11226 Comm: syz-executor.0 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880a88306c0 task.stack: ffff88804d360000 RIP: 0010:__list_del_entry_valid+0x81/0xef lib/list_debug.c:51 RSP: 0018:ffff88804d367bd0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a8af1180 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a8af11a0 RBP: ffff8880a8af1198 R08: 0000000000000000 R09: 0000000000040057 R10: ffff8880a8830f70 R11: ffff8880a88306c0 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880a8af11a0 R15: ffff8880b613b200 FS: 00007f39b6245700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30023000 CR3: 00000000a0d6c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] kernfs_kill_sb+0x5b/0x1b0 fs/kernfs/mount.c:365 sysfs_kill_sb+0x1e/0x30 fs/sysfs/mount.c:53 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 kernfs_mount_ns+0x60f/0x7c0 fs/kernfs/mount.c:339 sysfs_mount+0xa1/0x160 fs/sysfs/mount.c:39 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007f39b6244c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219 RDX: 00000000200001c0 RSI: 0000000020027000 RDI: 0000000000000000 RBP: 00007f39b6244ca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00007ffdc1169b3f R14: 00007f39b62459c0 R15: 000000000119bf8c Code: c5 0f 84 df 00 00 00 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 e0 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 51 49 8b 14 24 48 39 ea 0f 85 97 00 00 00 49 8d RIP: __list_del_entry_valid+0x81/0xef lib/list_debug.c:51 RSP: ffff88804d367bd0 ---[ end trace a5023b5abbfed915 ]---