fuse: fd is not a fuse device
------------[ cut here ]------------
skb_assert_len
WARNING: ./include/linux/skbuff.h:2753 at skb_assert_len include/linux/skbuff.h:2753 [inline], CPU#0: syz.5.1584/9660
WARNING: ./include/linux/skbuff.h:2753 at __dev_queue_xmit+0x18ec/0x2bc0 net/core/dev.c:4781, CPU#0: syz.5.1584/9660
Modules linked in:
CPU: 0 UID: 0 PID: 9660 Comm: syz.5.1584 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : skb_assert_len include/linux/skbuff.h:2753 [inline]
pc : __dev_queue_xmit+0x18ec/0x2bc0 net/core/dev.c:4781
lr : skb_assert_len include/linux/skbuff.h:2753 [inline]
lr : __dev_queue_xmit+0x18ec/0x2bc0 net/core/dev.c:4781
sp : ffff8000949b7300
x29: ffff8000949b7550 x28: 1fffe00024001926 x27: dfff800000000000
x26: ffff700012936e78 x25: 1fffe00024001932 x24: ffff00012000c930
x23: ffff0000f08f0000 x22: 1fffe0002400191a x21: ffff80008a19d000
x20: ffff00012000c8c0 x19: ffff00012000c8d0 x18: 1fffe00034bb7428
x17: 0000000000000003 x16: ffff800088b37000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a5d5e28 x10: 0000000000000003 x9 : b2e7a7018b69c100
x8 : b2e7a7018b69c100 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080156118
x2 : 0000000000000006 x1 : ffff0000c9f257c0 x0 : 0000000000000001
Call trace:
 skb_assert_len include/linux/skbuff.h:2753 [inline] (P)
 __dev_queue_xmit+0x18ec/0x2bc0 net/core/dev.c:4781 (P)
 dev_queue_xmit include/linux/netdevice.h:3448 [inline]
 packet_xmit+0x6c/0x314 net/packet/af_packet.c:276
 tpacket_snd net/packet/af_packet.c:2907 [inline]
 packet_sendmsg+0x1858/0x3df0 net/packet/af_packet.c:3134
 sock_sendmsg_nosec net/socket.c:775 [inline]
 __sock_sendmsg+0xc8/0x17c net/socket.c:790
 sock_write_iter+0x220/0x310 net/socket.c:1241
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x51c/0xa0c fs/read_write.c:687
 ksys_write+0x12c/0x228 fs/read_write.c:739
 __do_sys_write fs/read_write.c:750 [inline]
 __se_sys_write fs/read_write.c:747 [inline]
 __arm64_sys_write+0x84/0x98 fs/read_write.c:747
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:758
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:777
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:590
irq event stamp: 854
hardirqs last  enabled at (853): [<ffff8000803b701c>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1673 [inline]
hardirqs last  enabled at (853): [<ffff8000803b701c>] finish_lock_switch kernel/sched/core.c:5241 [inline]
hardirqs last  enabled at (853): [<ffff8000803b701c>] finish_task_switch+0x234/0x858 kernel/sched/core.c:5359
hardirqs last disabled at (854): [<ffff80008690b3d0>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445
softirqs last  enabled at (832): [<ffff800084c0e6c4>] __alloc_skb+0x1c0/0x610 net/core/skbuff.c:698
softirqs last disabled at (828): [<ffff800084c0e6ac>] local_bh_disable include/linux/bottom_half.h:20 [inline]
softirqs last disabled at (828): [<ffff800084c0e6ac>] __alloc_skb+0x1a8/0x610 net/core/skbuff.c:697
---[ end trace 0000000000000000 ]---
skb len=0 data_len=0 headroom=160 headlen=0 tailroom=224
end-tail=224 mac=(160,0) mac_len=0 net=(160,-1) trans=-1
shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
csum(0x0 start=0 offset=0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0000 pkttype=0 iif=0
priority=0x0 mark=0x0 alloc_cpu=0 vlan_all=0x0
encapsulation=0 inner(proto=0x0000, mac=0, net=0, trans=0)
dev name=tunl0 feat=0x0000000e401d4869
sk family=17 type=3 proto=0