syzbot

skbuff: skb_over_panic: text:00000000dc1b3dfa len:736 put:72 head:000000001fe18f9d data:000000001fe18f9d tail:0x2e0 end:0x2c0 dev:<NULL>
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kernel BUG at net/core/skbuff.c:109!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 439 Comm: syz-executor.5 Not tainted 5.4.92-syzkaller-00491-g73d140dc8abe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_panic+0x14d/0x150 net/core/skbuff.c:105
Code: 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 49 89 e9 b8 00 00 00 00 53 41 55 41 54 41 57 e8 03 1a dc fd 48 83 c4 20 <0f> 0b 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 70 4c 89 cb 4c 89
RSP: 0018:ffff8881e51c6ca0 EFLAGS: 00010286
RAX: 0000000000000088 RBX: ffffffff8529fbde RCX: d56ea109826bdf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff8881e5132000 R08: ffffffff814e45f1 R09: ffffed103ee25e08
R10: ffffed103ee25e08 R11: 0000000000000000 R12: 00000000000002e0
R13: 00000000000002c0 R14: dffffc0000000000 R15: ffff8881e5132000
FS:  00007f3c31075700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200089b8 CR3: 00000001e55a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_over_panic+0x25/0x30 net/core/skbuff.c:114
 skb_put+0x1e0/0x1e0 net/core/skbuff.c:1873
 dump_esp_combs net/key/af_key.c:3006 [inline]
 pfkey_send_acquire+0x18ee/0x2d60 net/key/af_key.c:3227
 km_query net/xfrm/xfrm_state.c:2200 [inline]
 xfrm_state_find+0x2e3f/0x4820 net/xfrm/xfrm_state.c:1136
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2381 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2426 [inline]
 xfrm_resolve_and_create_bundle+0x6a3/0x2ec0 net/xfrm/xfrm_policy.c:2717
 xfrm_lookup_with_ifid+0x93c/0x2080 net/xfrm/xfrm_policy.c:3040
 xfrm_lookup net/xfrm/xfrm_policy.c:3164 [inline]
 xfrm_lookup_route+0x37/0x170 net/xfrm/xfrm_policy.c:3175
 ip_route_output_flow+0x20c/0x340 net/ipv4/route.c:2733
 udp_sendmsg+0x180c/0x2f60 net/ipv4/udp.c:1147
 sock_sendmsg_nosec net/socket.c:638 [inline]
 sock_sendmsg net/socket.c:658 [inline]
 ____sys_sendmsg+0x587/0x8d0 net/socket.c:2298
 ___sys_sendmsg net/socket.c:2352 [inline]
 __sys_sendmmsg+0x39a/0x700 net/socket.c:2455
 __do_sys_sendmmsg net/socket.c:2484 [inline]
 __se_sys_sendmmsg net/socket.c:2481 [inline]
 __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2481
 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e219
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3c31074c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e219
RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003
RBP: 000000000119c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c034
R13: 00007fffa52f145f R14: 00007f3c310759c0 R15: 000000000119c034
Modules linked in:
RIP: 0010:skb_panic+0x14d/0x150 net/core/skbuff.c:105
Code: 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 49 89 e9 b8 00 00 00 00 53 41 55 41 54 41 57 e8 03 1a dc fd 48 83 c4 20 <0f> 0b 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 70 4c 89 cb 4c 89
RSP: 0018:ffff8881e51c6ca0 EFLAGS: 00010286
RAX: 0000000000000088 RBX: ffffffff8529fbde RCX: d56ea109826bdf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff8881e5132000 R08: ffffffff814e45f1 R09: ffffed103ee25e08
R10: ffffed103ee25e08 R11: 0000000000000000 R12: 00000000000002e0
R13: 00000000000002c0 R14: dffffc0000000000 R15: ffff8881e5132000
FS:  00007f3c31075700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c31053db8 CR3: 00000001e55a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400