Dead loop on virtual device ip6_vti0, fix it urgently!
BUG: unable to handle kernel paging request at ffffed00545251ff
IP: [<ffffffff81863056>] fuse_dev_do_write+0x1316/0x23d0 fs/fuse/dev.c:1916
PGD 21fffb067 [  670.662652] PUD 21fff9067 
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:[  670.673223] IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
ip6_tunnel: 6tnl0 xmit: Local address not yet configured!
ip6_tunnel: 6tnl0 xmit: Local address not yet configured!
CPU: 0 PID: 31658 Comm: syz-executor0 Not tainted 4.9.147+ #86
task: ffff8801bec34740 task.stack: ffff8801ca578000
IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
RIP: 0010:[<ffffffff81863056>]  [<ffffffff81863056>] fuse_dev_do_write+0x1316/0x23d0 fs/fuse/dev.c:1916
RSP: 0018:ffff8801ca57f910  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: ffff8801d2954db0 RCX: ffff8801a2929000
RDX: 1ffff100545251ff RSI: ffff8802a2928fff RDI: ffff8801d2954e60
RBP: ffff8801ca57fba0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff8801ca57fbd0 R14: ffff8801c6f083c0 R15: 1ffff100394aff2f
FS:  00007f22f6f51700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed00545251ff CR3: 00000001a202c000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 ffff880100000000 ffff8801ca57fbd0 ffff8801d2954db0 ffff8801d2954e60
 ffffffff00000001 ffff880100001000 ffff8801d2954e4c ffff8801c6f083c8
 ffff8801d2954e58 ffff8801d2954de0 ffff8801c6f083d0 ffff8801d9ff5500
Call Trace:
 [<ffffffff81864e52>] fuse_dev_write+0x142/0x1d0 fs/fuse/dev.c:1955
 [<ffffffff81508667>] new_sync_write fs/read_write.c:496 [inline]
 [<ffffffff81508667>] __vfs_write+0x3d7/0x580 fs/read_write.c:509
 [<ffffffff8150aeb7>] vfs_write+0x187/0x520 fs/read_write.c:557
 [<ffffffff8150ece9>] SYSC_write fs/read_write.c:604 [inline]
 [<ffffffff8150ece9>] SyS_write+0xd9/0x1c0 fs/read_write.c:596
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff8281a4d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 02 84 c0 74 08 3c 03 0f 8e 33 10 00 00 8b 83 b0 00 00 00 83 e8 01 48 8d 34 01 48 b8 00 00 00 00 00 fc ff df 48 89 f2 48 c1 ea 03 <0f> b6 04 02 48 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 32 0d 00 
RIP  [<ffffffff81863056>] fuse_dev_do_write+0x1316/0x23d0 fs/fuse/dev.c:1916
 RSP <ffff8801ca57f910>
CR2: ffffed00545251ff
---[ end trace d8253f1a5334e04f ]---