skbuff: skb_over_panic: text:ffffffff87ca6916 len:232 put:72 head:ffff88802bac3c00 data:ffff88802bac3c00 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: 10738 Comm: syz-executor.4 Not tainted 5.11.0-rc5-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 b9 43 8a ff 74 24 10 ff 74 24 20 e8 ac d3 c4 ff <0f> 0b e8 e8 f2 7d f8 4c 8b 64 24 18 e8 5e a9 c0 f8 48 c7 c1 a0 c5 RSP: 0018:ffffc9000a5bee60 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff88801b43db40 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b6285 RDI: fffff520014b7dbe RBP: ffffffff8a43c5e0 R08: 0000000000000086 R09: 0000000000000000 R10: ffffffff815af45e R11: 0000000000000000 R12: ffffffff87ca6916 R13: 0000000000000048 R14: ffffffff8a43b920 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9f00000(0063) knlGS:00000000f556fb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000003142d000 CR3: 000000002fe52000 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+0x292/0x470 net/socket.c:2482 __compat_sys_sendmmsg net/compat.c:361 [inline] __do_compat_sys_sendmmsg net/compat.c:368 [inline] __se_compat_sys_sendmmsg net/compat.c:365 [inline] __ia32_compat_sys_sendmmsg+0x9b/0x100 net/compat.c:365 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f96549 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f556f0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000159 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020007fc0 RDX: 000000000800001d RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace c66f88ae208a9936 ]--- 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 b9 43 8a ff 74 24 10 ff 74 24 20 e8 ac d3 c4 ff <0f> 0b e8 e8 f2 7d f8 4c 8b 64 24 18 e8 5e a9 c0 f8 48 c7 c1 a0 c5 RSP: 0018:ffffc9000a5bee60 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff88801b43db40 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b6285 RDI: fffff520014b7dbe RBP: ffffffff8a43c5e0 R08: 0000000000000086 R09: 0000000000000000 R10: ffffffff815af45e R11: 0000000000000000 R12: ffffffff87ca6916 R13: 0000000000000048 R14: ffffffff8a43b920 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0063) knlGS:00000000f556fb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f746a9f5000 CR3: 000000002fe52000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400