skbuff: skb_over_panic: text:ffffffff864f820d len:232 put:72 head:ffff8880ab5c65c0 data:ffff8880ab5c65c0 tail:0xe8 end:0xc0 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:104! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7991 Comm: syz-executor341 Not tainted 4.14.284-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888096670080 task.stack: ffff88809a358000 RIP: 0010:skb_panic+0x172/0x174 net/core/skbuff.c:104 RSP: 0018:ffff88809a35f1c8 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff8880b0048e80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878bc800 RDI: ffffed101346be2f RBP: ffffffff8855bb20 R08: 0000000000000086 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff864f820d R13: 0000000000000048 R14: ffffffff8855b380 R15: 00000000000000c0 FS: 00007fe8aad22700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd3bba3ff8 CR3: 00000000b100a000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:109 [inline] skb_put.cold+0x24/0x24 net/core/skbuff.c:1708 dump_esp_combs net/key/af_key.c:3014 [inline] pfkey_send_acquire+0x161d/0x2360 net/key/af_key.c:3235 km_query+0xa9/0x1b0 net/xfrm/xfrm_state.c:1984 xfrm_state_find+0x1847/0x27c0 net/xfrm/xfrm_state.c:1026 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:1385 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1429 [inline] xfrm_resolve_and_create_bundle+0x29b/0x2630 net/xfrm/xfrm_policy.c:1721 xfrm_lookup+0x1ee/0x1790 net/xfrm/xfrm_policy.c:2031 xfrm_lookup_route+0x33/0x1b0 net/xfrm/xfrm_policy.c:2150 ip_route_output_flow+0xf9/0x130 net/ipv4/route.c:2630 udp_sendmsg+0x13b3/0x1c80 net/ipv4/udp.c:1025 inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x326/0x800 net/socket.c:2062 __sys_sendmmsg+0x129/0x330 net/socket.c:2152 SYSC_sendmmsg net/socket.c:2183 [inline] SyS_sendmmsg+0x2f/0x50 net/socket.c:2178 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe8aad999e9 RSP: 002b:00007fe8aad22308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fe8aae1b3f8 RCX: 00007fe8aad999e9 RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003 RBP: 00007fe8aae1b3f0 R08: 0000000000000000 R09: 0000000000000000 R10: 000000a742250118 R11: 0000000000000246 R12: 00007fe8aae1b3fc R13: 00007fe8aade82bc R14: 0100000000000000 R15: 0000000000022000 Code: 8b 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 c0 b3 55 88 ff 74 24 10 ff 74 24 20 e8 04 6b e4 ff <0f> 0b e8 78 ac 36 fa 4c 8b 64 24 18 e8 2e 4e 60 fa 48 c7 c1 e0 RIP: skb_panic+0x172/0x174 net/core/skbuff.c:104 RSP: ffff88809a35f1c8 ---[ end trace 5881563e2561e955 ]---