TITLE: kernel BUG in pfkey_send_acquire
TYPE: BUG

[  280.626490][T13868] skbuff: skb_over_panic: text:ffffffff87ca4a76 len:232 put:72 head:ffff88801115a800 data:ffff88801115a800 tail:0xe8 end:0xc0 dev:<NULL>
[  280.661924][T13868] ------------[ cut here ]------------
[  280.667662][T13868] kernel BUG at net/core/skbuff.c:109!
[  280.683940][T13868] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[  280.690030][T13868] CPU: 0 PID: 13868 Comm: syz-executor.4 Not tainted 5.11.0-rc3-syzkaller #0
[  280.698799][T13868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  280.708856][T13868] RIP: 0010:skb_panic+0x16c/0x16e
[  280.713991][T13868] 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 e0 bd 43 8a ff 74 24 10 ff 74 24 20 e8 7c d4 c4 ff <0f> 0b e8 c3 2b 7e f8 4c 8b 64 24 18 e8 59 dd c0 f8 48 c7 c1 20 ca
[  280.733628][T13868] RSP: 0018:ffffc9001646ee60 EFLAGS: 00010282
[  280.739708][T13868] RAX: 0000000000000086 RBX: ffff88802b6ccc80 RCX: 0000000000000000
[  280.747688][T13868] RDX: 0000000000040000 RSI: ffffffff815b6b15 RDI: fffff52002c8ddbe
[  280.755665][T13868] RBP: ffffffff8a43ca60 R08: 0000000000000086 R09: 0000000000000000
[  280.763640][T13868] R10: ffffffff815afcee R11: 0000000000000000 R12: ffffffff87ca4a76
[  280.771619][T13868] R13: 0000000000000048 R14: ffffffff8a43bda0 R15: 00000000000000c0
[  280.779597][T13868] FS:  0000000000000000(0000) GS:ffff8880b9e00000(0063) knlGS:00000000f54f6b40
[  280.788715][T13868] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[  280.795311][T13868] CR2: 000000002fd28000 CR3: 0000000023af9000 CR4: 00000000001506f0
[  280.803293][T13868] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  280.811269][T13868] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  280.819243][T13868] Call Trace:
[  280.827917][T13868]  skb_put.cold+0x24/0x24
[  280.832266][T13868]  pfkey_send_acquire+0x1856/0x2520
[  280.837486][T13868]  km_query+0xc5/0x210
[  280.841570][T13868]  xfrm_state_find+0x2afd/0x4be0
[  280.885771][T13868]  xfrm_tmpl_resolve+0x2f3/0xd40
[  280.901858][T13868]  xfrm_resolve_and_create_bundle+0x123/0x2590
[  280.959354][T13868]  xfrm_lookup_with_ifid+0x235/0x2130
[  280.980860][T13868]  xfrm_lookup_route+0x36/0x1e0
[  280.985723][T13868]  ip_route_output_flow+0x114/0x150
[  280.991028][T13868]  udp_sendmsg+0x1a21/0x2720
[  281.031357][T13868]  inet_sendmsg+0x99/0xe0
[  281.040829][T13868]  sock_sendmsg+0xcf/0x120
[  281.045261][T13868]  ____sys_sendmsg+0x331/0x810
[  281.073765][T13868]  ___sys_sendmsg+0xf3/0x170
[  281.103067][T13868]  __sys_sendmmsg+0x292/0x470
[  281.139900][T13868]  __ia32_compat_sys_sendmmsg+0x9b/0x100
[  281.150800][T13868]  __do_fast_syscall_32+0x56/0x80
[  281.155837][T13868]  do_fast_syscall_32+0x2f/0x70
[  281.160702][T13868]  entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
[  281.167112][T13868] RIP: 0023:0xf7f1d549
[  281.171189][T13868] 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
[  281.191251][T13868] RSP: 002b:00000000f54f60cc EFLAGS: 00000296 ORIG_RAX: 0000000000000159
[  281.199679][T13868] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020007fc0
[  281.207656][T13868] RDX: 000000000800001d RSI: 0000000000000000 RDI: 0000000000000000
[  281.215630][T13868] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  281.223605][T13868] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  281.231579][T13868] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[  281.239561][T13868] Modules linked in:
[  281.296748][T13868] ---[ end trace 219d5b7a15b4ceaf ]---
