------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 13909 Comm: syz-executor.5 Not tainted 5.11.0-rc4-syzkaller #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 b4 bf df f9 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:ffffc90002a5f3b0 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffffffff8acd2d00 RCX: 42568c12f4cbc500 RDX: ffffc90013717000 RSI: 00000000000147cd RDI: 00000000000147ce RBP: ffff8880254c3000 R08: ffffffff815fa322 R09: ffffed10173a60b8 R10: ffffed10173a60b8 R11: 0000000000000000 R12: 00000000000000e8 R13: 00000000000000c0 R14: dffffc0000000000 R15: ffff8880254c3000 FS: 00007f778d701700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000749138 CR3: 000000002d728000 CR4: 00000000001506e0 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:1876 dump_esp_combs net/key/af_key.c:3006 [inline] pfkey_send_acquire+0x1930/0x2d10 net/key/af_key.c:3227 km_query+0xd4/0x1b0 net/xfrm/xfrm_state.c:2205 xfrm_state_find+0x2d7f/0x4800 net/xfrm/xfrm_state.c:1141 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2384 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2429 [inline] xfrm_resolve_and_create_bundle+0x654/0x2cc0 net/xfrm/xfrm_policy.c:2719 xfrm_lookup_with_ifid+0x27d/0x2220 net/xfrm/xfrm_policy.c:3053 xfrm_lookup net/xfrm/xfrm_policy.c:3177 [inline] xfrm_lookup_route+0x38/0x190 net/xfrm/xfrm_policy.c:3188 udp_sendmsg+0x1b8f/0x2f10 net/ipv4/udp.c:1200 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x519/0x800 net/socket.c:2345 ___sys_sendmsg net/socket.c:2399 [inline] __sys_sendmmsg+0x453/0x680 net/socket.c:2489 __do_sys_sendmmsg net/socket.c:2518 [inline] __se_sys_sendmmsg net/socket.c:2515 [inline] __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2515 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f778d700c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e219 RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003 RBP: 000000000119c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c034 R13: 00007ffce983d9af R14: 00007f778d7019c0 R15: 000000000119c034 Modules linked in: ---[ end trace ab88e808ea4f645c ]--- 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 b4 bf df f9 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:ffffc90002a5f3b0 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffffffff8acd2d00 RCX: 42568c12f4cbc500 RDX: ffffc90013717000 RSI: 00000000000147cd RDI: 00000000000147ce RBP: ffff8880254c3000 R08: ffffffff815fa322 R09: ffffed10173a60b8 R10: ffffed10173a60b8 R11: 0000000000000000 R12: 00000000000000e8 R13: 00000000000000c0 R14: dffffc0000000000 R15: ffff8880254c3000 FS: 00007f778d701700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a2c325400 CR3: 000000002d728000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400