------------[ cut here ]------------
skb_assert_len
WARNING: CPU: 1 PID: 4471 at include/linux/skbuff.h:2570 skb_assert_len include/linux/skbuff.h:2570 [inline]
WARNING: CPU: 1 PID: 4471 at include/linux/skbuff.h:2570 __dev_queue_xmit+0x19f0/0x3154 net/core/dev.c:4286
Modules linked in:
CPU: 1 PID: 4471 Comm: syz.1.13 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : skb_assert_len include/linux/skbuff.h:2570 [inline]
pc : __dev_queue_xmit+0x19f0/0x3154 net/core/dev.c:4286
lr : skb_assert_len include/linux/skbuff.h:2570 [inline]
lr : __dev_queue_xmit+0x19f0/0x3154 net/core/dev.c:4286
sp : ffff800021817480
x29: ffff800021817640 x28: ffff700004302ea0 x27: dfff800000000000
x26: 1fffe0001980f95a x25: ffff0000d5948000 x24: ffff0000d3010664
x23: 1fffe0001980f942 x22: 0000000000000000 x21: ffff0000cc07ca10
x20: ffff800017d5e000 x19: ffff0000cc07ca00 x18: 1fffe00033e7697e
x17: ffff80001537d000 x16: ffff8000082dd248 x15: ffff00019f3b4bfc
x14: 0000000000000001 x13: 1fffe0001a249d90 x12: 0000000000000000
x11: 0000000000000000 x10: ffff60001a249d91 x9 : a3b00eef28514e00
x8 : a3b00eef28514e00 x7 : ffff80000825ab50 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000824981c
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 skb_assert_len include/linux/skbuff.h:2570 [inline]
 __dev_queue_xmit+0x19f0/0x3154 net/core/dev.c:4286
 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3051
 tpacket_snd net/packet/af_packet.c:2936 [inline]
 packet_sendmsg+0x1b14/0x40ac net/packet/af_packet.c:3162
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 sock_write_iter+0x268/0x368 net/socket.c:1144
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x3c8/0x7c8 fs/read_write.c:584
 ksys_write+0x12c/0x228 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 2062
hardirqs last  enabled at (2061): [<ffff80000825abe4>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline]
hardirqs last  enabled at (2061): [<ffff80000825abe4>] finish_lock_switch+0xb0/0x1c8 kernel/sched/core.c:5005
hardirqs last disabled at (2062): [<ffff800011b8c2bc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (2022): [<ffff800008031254>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (2020): [<ffff800008031220>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
skb len=0 headroom=160 headlen=0 tailroom=32
mac=(160,0) net=(160,-1) trans=-1
shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
csum(0x0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0003 pkttype=0 iif=0
dev name=tunl0 feat=0x00000006401d7869
sk family=17 type=2 proto=0