skbuff: skb_over_panic: text:000000003d304d18 len:736 put:72 head:000000001bf471ac data:000000001bf471ac tail:0x2e0 end:0x2c0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:105! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 3123 Comm: syz-executor.1 Not tainted 4.9.194+ #0 task: 000000009625552d task.stack: 00000000b9b0a8a0 RIP: 0010:[] [<000000002c78167c>] skb_panic+0x176/0x178 net/core/skbuff.c:105 RSP: 0018:ffff88019e146d60 EFLAGS: 00010282 RAX: 0000000000000088 RBX: ffff8801d9e9a000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8122c907 RDI: ffffed0033c28d9e RBP: ffff88019e146dc8 R08: 0000000000000088 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff82c769a0 R13: ffffffff8280b7e6 R14: 0000000000000048 R15: ffffffff82c76580 FS: 00007f7519a12700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd7ecf9b90 CR3: 00000001ca02d000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801d99f4d80 00000000000002e0 00000000000002c0 ffffffff82c76580 dffffc0000000000 ffff8801d99f4d80 00000000000002e0 00000000000002c0 00000000000002e0 ffff8801d9e9a000 0000000000000048 ffffffff8280b7e6 Call Trace: [<00000000f4b6decf>] skb_over_panic net/core/skbuff.c:110 [inline] [<00000000f4b6decf>] skb_put.cold+0x23/0x23 net/core/skbuff.c:1443 [<000000003d304d18>] dump_esp_combs net/key/af_key.c:3031 [inline] [<000000003d304d18>] pfkey_send_acquire+0x1656/0x23f0 net/key/af_key.c:3254 [<000000003546ced5>] km_query+0xba/0x1d0 net/xfrm/xfrm_state.c:1807 [<0000000059560d84>] xfrm_state_find+0x18b3/0x2910 net/xfrm/xfrm_state.c:879 [<00000000210f53e5>] xfrm_tmpl_resolve_one+0x1c7/0x7a0 net/xfrm/xfrm_policy.c:1500 [<000000008a006f88>] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1544 [inline] [<000000008a006f88>] xfrm_resolve_and_create_bundle+0x210/0x1e80 net/xfrm/xfrm_policy.c:1896 [<000000000b8fb161>] xfrm_lookup+0x200/0xaf0 net/xfrm/xfrm_policy.c:2257 [<0000000047ed4d9c>] xfrm_lookup_route+0x38/0x140 net/xfrm/xfrm_policy.c:2382 [<0000000013a54849>] ip_route_output_flow+0x93/0xa0 net/ipv4/route.c:2485 [<000000007d81b39a>] udp_sendmsg+0x1494/0x1c60 net/ipv4/udp.c:1029 [<000000007bdf4dfb>] udpv6_sendmsg+0x12af/0x2430 net/ipv6/udp.c:1086 [<0000000068aa41af>] inet_sendmsg+0x202/0x4d0 net/ipv4/af_inet.c:766 [<000000008b612dd1>] sock_sendmsg_nosec net/socket.c:649 [inline] [<000000008b612dd1>] sock_sendmsg+0xbe/0x110 net/socket.c:659 [<00000000bbbadfc5>] ___sys_sendmsg+0x387/0x8b0 net/socket.c:1983 [<00000000e0a4374a>] __sys_sendmmsg+0x164/0x3d0 net/socket.c:2073 [<00000000d1e2cd9c>] SYSC_sendmmsg net/socket.c:2104 [inline] [<00000000d1e2cd9c>] SyS_sendmmsg+0x35/0x60 net/socket.c:2099 [<0000000050aae8fa>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000fd86bb7c>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: c0 06 cf 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 c0 65 c7 82 ff 75 c8 ff 75 c0 e8 27 ce bf fe <0f> 0b e8 22 45 b1 fe 4c 8b 65 08 e8 09 ee ce fe 48 c7 c1 60 69 RIP [<000000002c78167c>] skb_panic+0x176/0x178 net/core/skbuff.c:101 RSP ---[ end trace 3483a3301014f08d ]---