skbuff: skb_over_panic: text:ffffffff87388516 len:232 put:72 head:ffff8880a8d2ac00 data:ffff8880a8d2ac00 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: 6896 Comm: syz-executor910 Not tainted 5.9.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 Code: fb 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 a0 4f 44 89 ff 74 24 10 ff 74 24 20 e8 73 df f8 fa <0f> 0b e8 6d d6 0f fb 4c 8b 64 24 18 e8 e3 a0 50 fb 48 c7 c1 e0 5b RSP: 0018:ffffc900056fee80 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffff88808801be80 RCX: 0000000000000000 RDX: ffff8880928fc400 RSI: ffffffff815f5985 RDI: fffff52000adfdc2 RBP: ffffffff89445c20 R08: 0000000000000086 R09: ffff8880ae5318e7 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87388516 R13: 0000000000000048 R14: ffffffff89444f60 R15: 00000000000000c0 FS: 00007fd6a6588700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9c357d0020 CR3: 0000000096c1a000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:114 [inline] skb_put.cold+0x24/0x24 net/core/skbuff.c:1867 dump_esp_combs net/key/af_key.c:3006 [inline] pfkey_send_acquire+0x1856/0x2520 net/key/af_key.c:3227 km_query+0xc5/0x210 net/xfrm/xfrm_state.c:2169 xfrm_state_find+0x2b70/0x4d50 net/xfrm/xfrm_state.c:1136 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2384 [inline] xfrm_tmpl_resolve+0x2f3/0xd40 net/xfrm/xfrm_policy.c:2429 xfrm_resolve_and_create_bundle+0x123/0x2590 net/xfrm/xfrm_policy.c:2719 xfrm_lookup_with_ifid+0x235/0x2130 net/xfrm/xfrm_policy.c:3053 xfrm_lookup net/xfrm/xfrm_policy.c:3177 [inline] xfrm_lookup_route+0x36/0x1e0 net/xfrm/xfrm_policy.c:3188 ip_route_output_flow+0xa6/0xc0 net/ipv4/route.c:2773 udp_sendmsg+0x1a21/0x26d0 net/ipv4/udp.c:1201 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:817 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x331/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmmsg+0x195/0x480 net/socket.c:2497 __do_sys_sendmmsg net/socket.c:2526 [inline] __se_sys_sendmmsg net/socket.c:2523 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2523 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x447369 Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 ab 05 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd6a6587da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00000000006dcc68 RCX: 0000000000447369 RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000006 RBP: 00000000006dcc60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc6c R13: 0000000000000002 R14: 0000000009000702 R15: 0000000000000005 Modules linked in: ---[ end trace 32391753eee01ee9 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 Code: fb 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 a0 4f 44 89 ff 74 24 10 ff 74 24 20 e8 73 df f8 fa <0f> 0b e8 6d d6 0f fb 4c 8b 64 24 18 e8 e3 a0 50 fb 48 c7 c1 e0 5b RSP: 0018:ffffc900056fee80 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffff88808801be80 RCX: 0000000000000000 RDX: ffff8880928fc400 RSI: ffffffff815f5985 RDI: fffff52000adfdc2 RBP: ffffffff89445c20 R08: 0000000000000086 R09: ffff8880ae5318e7 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87388516 R13: 0000000000000048 R14: ffffffff89444f60 R15: 00000000000000c0 FS: 00007fd6a6588700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f398003e0f8 CR3: 0000000096c1a000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400