------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:105! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 3874 Comm: syz-executor.4 Not tainted 4.9.202+ #0 task: 000000009611e218 task.stack: 000000006e76bb7e RIP: 0010:[] [<00000000adb53362>] skb_panic+0x176/0x178 net/core/skbuff.c:105 RSP: 0018:ffff8801a3bceea0 EFLAGS: 00010282 RAX: 0000000000000087 RBX: ffff8801d6479640 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8122c837 RDI: ffffed0034779dc6 RBP: ffff8801a3bcef08 R08: 0000000000000087 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff82c75800 R13: ffffffff827faeb3 R14: 0000000000000048 R15: ffffffff82c753e0 FS: 00007f75c6447700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000001d4be7000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801ca14cc80 0000000000000108 00000000000000c0 ffffffff82c753e0 ffffffff822df5dc ffff8801ca14cc80 0000000000000108 00000000000000c0 0000000000000108 ffff8801d6479640 0000000000000048 ffffffff827faeb3 Call Trace: [<00000000f0ab22ff>] skb_over_panic net/core/skbuff.c:110 [inline] [<00000000f0ab22ff>] skb_put.cold+0x23/0x23 net/core/skbuff.c:1443 [<000000006af7a226>] dump_ah_combs net/key/af_key.c:2986 [inline] [<000000006af7a226>] pfkey_send_acquire+0x1b13/0x23f0 net/key/af_key.c:3252 [<00000000af79f1be>] km_query+0xba/0x1d0 net/xfrm/xfrm_state.c:1807 [<00000000ed5b96b2>] xfrm_state_find+0x18b3/0x2910 net/xfrm/xfrm_state.c:879 [<00000000082729bf>] xfrm_tmpl_resolve_one+0x1c7/0x7a0 net/xfrm/xfrm_policy.c:1500 [<000000005c6432e9>] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1544 [inline] [<000000005c6432e9>] xfrm_resolve_and_create_bundle+0x210/0x1e80 net/xfrm/xfrm_policy.c:1896 [<00000000f2f59a9f>] xfrm_lookup+0x200/0xaf0 net/xfrm/xfrm_policy.c:2257 [<0000000071279154>] xfrm_lookup_route+0x38/0x140 net/xfrm/xfrm_policy.c:2382 [<0000000057b6afa7>] ip6_dst_lookup_flow+0x17e/0x210 net/ipv6/ip6_output.c:1098 [<00000000bac3d53c>] rawv6_sendmsg+0x980/0x29e0 net/ipv6/raw.c:924 [<00000000e4ef0f80>] inet_sendmsg+0x202/0x4d0 net/ipv4/af_inet.c:766 [<00000000fd46e9cb>] sock_sendmsg_nosec net/socket.c:649 [inline] [<00000000fd46e9cb>] sock_sendmsg+0xbe/0x110 net/socket.c:659 [<00000000282cf756>] ___sys_sendmsg+0x387/0x8b0 net/socket.c:1983 [<000000004a09015a>] __sys_sendmmsg+0x164/0x3d0 net/socket.c:2073 [<00000000e6f45c7e>] SYSC_sendmmsg net/socket.c:2104 [inline] [<00000000e6f45c7e>] SyS_sendmmsg+0x35/0x60 net/socket.c:2099 [<00000000c2cb1423>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000d2169bb4>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: e0 12 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 fe db c0 fe <0f> 0b e8 02 52 b2 fe 4c 8b 65 08 e8 29 fa cf fe 48 c7 c1 c0 57 RIP [<00000000adb53362>] skb_panic+0x176/0x178 net/core/skbuff.c:101 RSP ---[ end trace 1bca6cedd12ebe21 ]---