------------[ cut here ]------------
skb_assert_len
WARNING: CPU: 0 PID: 315 at include/linux/skbuff.h:2720 skb_assert_len include/linux/skbuff.h:2720 [inline]
WARNING: CPU: 0 PID: 315 at include/linux/skbuff.h:2720 __dev_queue_xmit+0x1e1d/0x3780 net/core/dev.c:4462
Modules linked in:
CPU: 0 UID: 0 PID: 315 Comm: syz.2.3 Not tainted syzkaller #0 0dce1a42a4db61fd93e445decfbc7fc3d71b95b8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:skb_assert_len include/linux/skbuff.h:2720 [inline]
RIP: 0010:__dev_queue_xmit+0x1e1d/0x3780 net/core/dev.c:4462
Code: 00 00 00 fc ff df e9 ea e6 ff ff e8 ed 0c 04 fd c6 05 9a dd e0 03 01 48 c7 c7 20 af 8b 86 48 c7 c6 0d 92 1b 87 e8 c3 0b 7f fc <0f> 0b 80 3d 7f dd e0 03 01 0f 84 af e3 ff ff e8 bf 0c 04 fd c6 05
RSP: 0018:ffffc9000b75f6a0 EFLAGS: 00010246
RAX: eb016185bf51dd00 RBX: ffff888131a441b0 RCX: 0000000000080000
RDX: ffffc900021f4000 RSI: 0000000000001954 RDI: 0000000000001955
RBP: ffffc9000b75f980 R08: ffff8881f6c29593 R09: 1ffff1103ed852b2
R10: dffffc0000000000 R11: ffffed103ed852b3 R12: 1ffff1102634882a
R13: ffff888131a44140 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f208089e6c0(0000) GS:ffff8881f6c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f519ff8 CR3: 000000010ff96000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 dev_queue_xmit include/linux/netdevice.h:3141 [inline]
 packet_xmit+0x76/0x360 net/packet/af_packet.c:276
 tpacket_snd net/packet/af_packet.c:2938 [inline]
 packet_sendmsg+0x228b/0x56b0 net/packet/af_packet.c:3165
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg net/socket.c:727 [inline]
 __sys_sendto+0x663/0x6e0 net/socket.c:2197
 __do_sys_sendto net/socket.c:2204 [inline]
 __se_sys_sendto net/socket.c:2200 [inline]
 __x64_sys_sendto+0xe9/0x100 net/socket.c:2200
 x64_sys_call+0x2c2c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f207f99e559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f208089e028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f207fc25fa0 RCX: 00007f207f99e559
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f207fa358b0 R08: 0000200000000100 R09: 0000000000000014
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f207fc26038 R14: 00007f207fc25fa0 R15: 00007ffe37dede38
 </TASK>
---[ end trace 0000000000000000 ]---
skb len=0 headroom=128 headlen=0 tailroom=256
mac=(128,0) mac_len=0 net=(128,-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=0x0004 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=sit0 feat=0x00000006401d4869
sk family=17 type=2 proto=0