skbuff: skb_over_panic: text:00000000be658be1 len:232 put:72 head:0000000061c5d044 data:0000000061c5d044 tail:0xe8 end:0xc0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8293 Comm: syz-executor.2 Not tainted 5.1.0-rc7-next-20190502 #35 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x176/0x178 net/core/skbuff.c:109 Code: 12 2b fc 4c 8b 4d b8 8b 4b 70 41 57 45 89 f0 4c 89 ea ff 75 d0 4c 89 e6 48 c7 c7 40 61 fd 87 ff 75 c8 ff 75 c0 e8 b1 42 dc fb <0f> 0b e8 e6 41 f2 fb 4c 8b 6d 08 e8 ad 09 2b fc 48 c7 c1 e0 6a fd RSP: 0000:ffff88808d34eae8 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff888089d8fd00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815b1e66 RDI: ffffed1011a69d4f RBP: ffff88808d34eb50 R08: 0000000000000086 R09: ffffed1015d06011 R10: ffffed1015d06010 R11: ffff8880ae830087 R12: ffffffff87fd6b20 R13: ffffffff863cac09 R14: 0000000000000048 R15: ffffffff87fd6100 FS: 00007fb195f31700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005595cb138aa8 CR3: 000000008981a000 CR4: 00000000001406f0 Call Trace: skb_over_panic net/core/skbuff.c:114 [inline] skb_put.cold+0x23/0x23 net/core/skbuff.c:1739 dump_esp_combs net/key/af_key.c:3001 [inline] pfkey_send_acquire+0x1bd9/0x2620 net/key/af_key.c:3222 km_query+0xd0/0x220 net/xfrm/xfrm_state.c:1953 xfrm_state_find+0x230b/0x37d0 net/xfrm/xfrm_state.c:998 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2389 [inline] xfrm_tmpl_resolve+0x32a/0xc90 net/xfrm/xfrm_policy.c:2434 xfrm_resolve_and_create_bundle+0x137/0x2750 net/xfrm/xfrm_policy.c:2725 xfrm_lookup_with_ifid+0x278/0x2080 net/xfrm/xfrm_policy.c:3048 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline] xfrm_lookup_route+0x3b/0x1f0 net/xfrm/xfrm_policy.c:3183 ip_route_output_flow+0xad/0xc0 net/ipv4/route.c:2668 udp_sendmsg+0x1aec/0x2820 net/ipv4/udp.c:1154 udpv6_sendmsg+0x13a4/0x28d0 net/ipv6/udp.c:1289 inet_sendmsg+0x147/0x5e0 net/ipv4/af_inet.c:802 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x3e2/0x930 net/socket.c:2280 __sys_sendmmsg+0x1bf/0x4d0 net/socket.c:2375 __do_sys_sendmmsg net/socket.c:2404 [inline] __se_sys_sendmmsg net/socket.c:2401 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2401 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb195f30c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458da9 RDX: 00000000000005c3 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb195f316d4 R13: 00000000004c5fac R14: 00000000004da760 R15: 00000000ffffffff Modules linked in: ---[ end trace 6e08946dee1c1c60 ]--- RIP: 0010:skb_panic+0x176/0x178 net/core/skbuff.c:109 Code: 12 2b fc 4c 8b 4d b8 8b 4b 70 41 57 45 89 f0 4c 89 ea ff 75 d0 4c 89 e6 48 c7 c7 40 61 fd 87 ff 75 c8 ff 75 c0 e8 b1 42 dc fb <0f> 0b e8 e6 41 f2 fb 4c 8b 6d 08 e8 ad 09 2b fc 48 c7 c1 e0 6a fd RSP: 0000:ffff88808d34eae8 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff888089d8fd00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815b1e66 RDI: ffffed1011a69d4f RBP: ffff88808d34eb50 R08: 0000000000000086 R09: ffffed1015d06011 R10: ffffed1015d06010 R11: ffff8880ae830087 R12: ffffffff87fd6b20 R13: ffffffff863cac09 R14: 0000000000000048 R15: ffffffff87fd6100 FS: 00007fb195f31700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005595cb138aa8 CR3: 000000008981a000 CR4: 00000000001406f0