skbuff: skb_over_panic: text:ffffffff87cb3b86 len:232 put:72 head:ffff888028545c00 data:ffff888028545c00 tail:0xe8 end:0xc0 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 11293 Comm: syz-executor.2 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+0x16c/0x16e net/core/skbuff.c:109 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 60 69 43 8a ff 74 24 10 ff 74 24 20 e8 24 c3 c4 ff <0f> 0b e8 75 11 7d f8 4c 8b 64 24 18 e8 8b 87 bf f8 48 c7 c1 a0 75 RSP: 0018:ffffc90008a96e80 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffff888013441e80 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b62b5 RDI: fffff52001152dc2 RBP: ffffffff8a4375e0 R08: 0000000000000086 R09: 0000000000000000 R10: ffffffff815af45e R11: 0000000000000000 R12: ffffffff87cb3b86 R13: 0000000000000048 R14: ffffffff8a436920 R15: 00000000000000c0 FS: 00007fb6d3002700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8536714070 CR3: 000000002900a000 CR4: 00000000001506e0 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:1876 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:2205 xfrm_state_find+0x2afd/0x4be0 net/xfrm/xfrm_state.c:1141 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+0x114/0x150 net/ipv4/route.c:2775 udp_sendmsg+0x1a21/0x2720 net/ipv4/udp.c:1200 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:817 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x331/0x810 net/socket.c:2345 ___sys_sendmsg+0xf3/0x170 net/socket.c:2399 __sys_sendmmsg+0x195/0x470 net/socket.c:2489 __do_sys_sendmmsg net/socket.c:2518 [inline] __se_sys_sendmmsg net/socket.c:2515 [inline] __x64_sys_sendmmsg+0x99/0x100 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:00007fb6d3001c68 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: 00007fff145c339f R14: 00007fb6d30029c0 R15: 000000000119c034 Modules linked in: ---[ end trace 4da2140cb6f79ef8 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 60 69 43 8a ff 74 24 10 ff 74 24 20 e8 24 c3 c4 ff <0f> 0b e8 75 11 7d f8 4c 8b 64 24 18 e8 8b 87 bf f8 48 c7 c1 a0 75 RSP: 0018:ffffc90008a96e80 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffff888013441e80 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b62b5 RDI: fffff52001152dc2 RBP: ffffffff8a4375e0 R08: 0000000000000086 R09: 0000000000000000 R10: ffffffff815af45e R11: 0000000000000000 R12: ffffffff87cb3b86 R13: 0000000000000048 R14: ffffffff8a436920 R15: 00000000000000c0 FS: 00007fb6d3002700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcfa5f29e0 CR3: 000000002900a000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400