------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! CPU: 0 PID: 2852 Comm: syz-executor615 Not tainted 5.4.65-syzkaller-00175-g63d1c2f0b547 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x14d/0x150 net/core/skbuff.c:105 Code: 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 49 89 e9 b8 00 00 00 00 53 41 55 41 54 41 57 e8 03 59 07 fe 48 83 c4 20 <0f> 0b 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 70 4c 89 cb 4c 89 RSP: 0018:ffff8881d6e6ecc0 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffffffff84a26bff RCX: 29d865cc16300300 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881d4073c00 R08: ffffffff812ba23e R09: ffffed103b705e00 R10: ffffed103b705e00 R11: 0000000000000000 R12: 00000000000000e8 R13: 00000000000000c0 R14: dffffc0000000000 R15: ffff8881d4073c00 FS: 00007f202f64f700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000e038 CR3: 00000001c96d4005 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic+0x25/0x30 net/core/skbuff.c:114 skb_put+0x1e0/0x1e0 net/core/skbuff.c:1868 dump_esp_combs net/key/af_key.c:2999 [inline] pfkey_send_acquire+0x18ee/0x2d60 net/key/af_key.c:3220 km_query net/xfrm/xfrm_state.c:2166 [inline] xfrm_state_find+0x2f75/0x4990 net/xfrm/xfrm_state.c:1133 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2381 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2426 [inline] xfrm_resolve_and_create_bundle+0x657/0x2ff0 net/xfrm/xfrm_policy.c:2717 xfrm_lookup_with_ifid+0x955/0x1eb0 net/xfrm/xfrm_policy.c:3040 xfrm_lookup net/xfrm/xfrm_policy.c:3164 [inline] xfrm_lookup_route+0x37/0x170 net/xfrm/xfrm_policy.c:3175 ip_route_output_flow+0x1ad/0x2a0 net/ipv4/route.c:2727 udp_sendmsg+0x170f/0x2e40 net/ipv4/udp.c:1147 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg net/socket.c:658 [inline] ____sys_sendmsg+0x56f/0x860 net/socket.c:2298 ___sys_sendmsg net/socket.c:2352 [inline] __sys_sendmmsg+0x338/0x680 net/socket.c:2455 __do_sys_sendmmsg net/socket.c:2484 [inline] __se_sys_sendmmsg net/socket.c:2481 [inline] __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2481 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x449819 Code: e8 8c e7 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 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f202f64eda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00000000006dfc38 RCX: 0000000000449819 RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003 RBP: 00000000006dfc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dfc3c R13: 0000000000000002 R14: 0000000009000702 R15: 0000000000000000 Modules linked in: RIP: 0010:skb_panic+0x14d/0x150 net/core/skbuff.c:105 Code: 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 49 89 e9 b8 00 00 00 00 53 41 55 41 54 41 57 e8 03 59 07 fe 48 83 c4 20 <0f> 0b 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 70 4c 89 cb 4c 89 RSP: 0018:ffff8881d6e6ecc0 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffffffff84a26bff RCX: 29d865cc16300300 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881d4073c00 R08: ffffffff812ba23e R09: ffffed103b705e00 R10: ffffed103b705e00 R11: 0000000000000000 R12: 00000000000000e8 R13: 00000000000000c0 R14: dffffc0000000000 R15: ffff8881d4073c00 FS: 00007f202f64f700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020016038 CR3: 00000001c96d4005 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400