SELinux:  Context system_u: is not valid (left unmapped).
raw_sendmsg: syz-executor.1 forgot to set AF_INET. Fix it!
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=514 sclass=netlink_route_socket pig=3791 comm=syz-executor.5
skbuff: skb_over_panic: text:000000008596b28c len:736 put:72 head:00000000dfb56fff data:00000000dfb56fff tail:0x2e0 end:0x2c0 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:105!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 3786 Comm: syz-executor.0 Not tainted 4.9.205-syzkaller #0
task: 00000000af5d7481 task.stack: 00000000cbbcac80
RIP: 0010:[<ffffffff827fd8b7>]  [<00000000faf07e99>] skb_panic+0x176/0x178 net/core/skbuff.c:105
RSP: 0018:ffff8801cef3ed60  EFLAGS: 00010282
RAX: 0000000000000088 RBX: ffff8801c83cbc80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8122c977 RDI: ffffed0039de7d9e
RBP: ffff8801cef3edc8 R08: 0000000000000088 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff82c75800
R13: ffffffff827faec6 R14: 0000000000000048 R15: ffffffff82c753e0
FS:  00007fa090f13700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff5d7fdfe8 CR3: 00000001d2950000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d97edf80 00000000000002e0 00000000000002c0 ffffffff82c753e0
 dffffc0000000000 ffff8801d97edf80 00000000000002e0 00000000000002c0
 00000000000002e0 ffff8801c83cbc80 0000000000000048 ffffffff827faec6
Call Trace:
 [<00000000957b605d>] skb_over_panic net/core/skbuff.c:110 [inline]
 [<00000000957b605d>] skb_put.cold+0x23/0x23 net/core/skbuff.c:1443
 [<000000008596b28c>] dump_esp_combs net/key/af_key.c:3031 [inline]
 [<000000008596b28c>] pfkey_send_acquire+0x1656/0x23f0 net/key/af_key.c:3254
 [<00000000feac45c7>] km_query+0xba/0x1d0 net/xfrm/xfrm_state.c:1807
 [<00000000bc18bc5e>] xfrm_state_find+0x18b3/0x2910 net/xfrm/xfrm_state.c:879
 [<00000000e64f325c>] xfrm_tmpl_resolve_one+0x1c7/0x7a0 net/xfrm/xfrm_policy.c:1500
 [<0000000082169b5b>] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1544 [inline]
 [<0000000082169b5b>] xfrm_resolve_and_create_bundle+0x210/0x1e80 net/xfrm/xfrm_policy.c:1896
 [<00000000752412e0>] xfrm_lookup+0x200/0xaf0 net/xfrm/xfrm_policy.c:2257
 [<0000000032b399ce>] xfrm_lookup_route+0x38/0x140 net/xfrm/xfrm_policy.c:2382
 [<00000000860bc688>] ip_route_output_flow+0x93/0xa0 net/ipv4/route.c:2487
 [<00000000cb49816d>] udp_sendmsg+0x1494/0x1c60 net/ipv4/udp.c:1029
 [<000000002e1e5378>] udpv6_sendmsg+0x12af/0x2430 net/ipv6/udp.c:1086
 [<0000000057392660>] inet_sendmsg+0x202/0x4d0 net/ipv4/af_inet.c:766
 [<0000000090ce551f>] sock_sendmsg_nosec net/socket.c:649 [inline]
 [<0000000090ce551f>] sock_sendmsg+0xbe/0x110 net/socket.c:659
 [<00000000f8776482>] ___sys_sendmsg+0x387/0x8b0 net/socket.c:1983
 [<000000008e07df59>] __sys_sendmmsg+0x164/0x3d0 net/socket.c:2073
 [<00000000edd72cc7>] SYSC_sendmmsg net/socket.c:2104 [inline]
 [<00000000edd72cc7>] SyS_sendmmsg+0x35/0x60 net/socket.c:2099
 [<00000000235715d3>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<00000000947a9046>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 50 0e d0 fe 4c 8b 4d b8 8b 4b 78 41 57 45 89 f0 4c 89 ea ff 75 d0 4c 89 e6 48 c7 c7 20 54 c7 82 ff 75 c8 ff 75 c0 e8 5e d8 c0 fe <0f> 0b e8 62 4e b2 fe 4c 8b 65 08 e8 99 f5 cf fe 48 c7 c1 c0 57 
RIP  [<00000000faf07e99>] skb_panic+0x176/0x178 net/core/skbuff.c:101
 RSP <ffff8801cef3ed60>
---[ end trace 9f58e131f866d904 ]---