------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2831 Comm: syz-executor.4 Not tainted 5.4.210-syzkaller-00019-g035e4939365c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:skb_panic+0x14a/0x150 net/core/skbuff.c:105 Code: f2 0e 85 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 49 89 e9 31 c0 53 41 55 41 54 41 57 e8 cf ea c6 00 48 83 c4 20 <0f> 0b 0f 1f 40 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 68 4d 89 RSP: 0018:ffff8881dcccf370 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffffffff850ef2c0 RCX: 330ded1449e55200 RDX: ffffc90004365000 RSI: 00000000000215e3 RDI: 00000000000215e4 RBP: ffff8881e13ee800 R08: ffffffff814abe7a R09: ffffed103edeaa08 R10: ffffed103edeaa08 R11: 1ffff1103edeaa07 R12: 00000000000000a0 R13: 0000000000000080 R14: dffffc0000000000 R15: ffff8881e13ee800 FS: 00007fefaa4f0700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020058030 CR3: 00000001e467a000 CR4: 00000000003406f0 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+0x148/0x1f0 net/core/skbuff.c:1877 dump_esp_combs net/key/af_key.c:3010 [inline] pfkey_send_acquire+0x18f5/0x2cf0 net/key/af_key.c:3231 km_query+0x79/0xe0 net/xfrm/xfrm_state.c:2206 xfrm_state_find+0x2255/0x3110 net/xfrm/xfrm_state.c:1135 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2397 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2442 [inline] xfrm_resolve_and_create_bundle+0x5e5/0x2da0 net/xfrm/xfrm_policy.c:2736 xfrm_lookup_with_ifid+0x851/0x2050 net/xfrm/xfrm_policy.c:3059 xfrm_lookup net/xfrm/xfrm_policy.c:3183 [inline] xfrm_lookup_route+0x37/0x170 net/xfrm/xfrm_policy.c:3194 ip_route_output_flow+0x19b/0x2a0 net/ipv4/route.c:2756 udp_sendmsg+0x1446/0x2560 net/ipv4/udp.c:1154 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg net/socket.c:658 [inline] ____sys_sendmsg+0x4ee/0x7c0 net/socket.c:2287 ___sys_sendmsg net/socket.c:2341 [inline] __sys_sendmmsg+0x32b/0x640 net/socket.c:2444 __do_sys_sendmmsg net/socket.c:2473 [inline] __se_sys_sendmmsg net/socket.c:2470 [inline] __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2470 do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fefab7df5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fefaa4f0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fefab9001f0 RCX: 00007fefab7df5a9 RDX: 0400000000000354 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00007fefab83a7b0 R08: 0000000000000000 R09: 0000000000000000 R10: 000002873dedf99c R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd223b428f R14: 00007fefaa4f0300 R15: 0000000000022000 Modules linked in: ---[ end trace fbd42b5aae6773ec ]--- RIP: 0010:skb_panic+0x14a/0x150 net/core/skbuff.c:105 Code: f2 0e 85 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 49 89 e9 31 c0 53 41 55 41 54 41 57 e8 cf ea c6 00 48 83 c4 20 <0f> 0b 0f 1f 40 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 68 4d 89 RSP: 0018:ffff8881dcccf370 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffffffff850ef2c0 RCX: 330ded1449e55200 RDX: ffffc90004365000 RSI: 00000000000215e3 RDI: 00000000000215e4 RBP: ffff8881e13ee800 R08: ffffffff814abe7a R09: ffffed103edeaa08 R10: ffffed103edeaa08 R11: 1ffff1103edeaa07 R12: 00000000000000a0 R13: 0000000000000080 R14: dffffc0000000000 R15: ffff8881e13ee800 FS: 00007fefaa4f0700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020404030 CR3: 00000001e467a000 CR4: 00000000003406f0