RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 00000000000004d1 R14: 00000000006fc438 R15: 0000000000000024 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: 18981 Comm: syz-executor6 Not tainted 4.17.0-rc7+ #81 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fuse_ctl_remove_conn+0xc8/0x1b0 fs/fuse/control.c:286 RSP: 0018:ffff8801b49ff968 EFLAGS: 00010202 RAX: 0000000000000075 RBX: ffff88017d006420 RCX: ffffc9000cafe000 RDX: 0000000000040000 RSI: ffffffff826484ba RDI: 00000000000003a8 RBP: ffff8801b49ff990 R08: ffff8801b48fe240 R09: ffffed003b5c46d2 R10: ffffed003b5c46d2 R11: ffff8801dae23693 R12: 0000000000000000 R13: ffff8801d6a61d48 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f2857596700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffec338db68 CR3: 00000001d20c3000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_ctl_add_conn+0x261/0x280 fs/fuse/control.c:269 fuse_ctl_fill_super+0xf7/0x160 fs/fuse/control.c:307 mount_single+0xfb/0x170 fs/super.c:1246 fuse_ctl_mount+0x2c/0x40 fs/fuse/control.c:322 mount_fs+0xae/0x328 fs/super.c:1277 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:00007f2857595c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f28575966d4 RCX: 0000000000455a09 RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000180 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 00000000000004d1 R14: 00000000006fc438 R15: 0000000000000024 Code: 8b 5d 00 48 8d 7b 58 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 cc 00 00 00 4c 8b 7b 58 49 8d bf a8 03 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 a5 00 00 00 48 89 df 41 83 ec 01 49 83 ed RIP: fuse_ctl_remove_conn+0xc8/0x1b0 fs/fuse/control.c:286 RSP: ffff8801b49ff968 ---[ end trace a7e0b21e143cf26f ]---