panic: pool_do_get: pkpcb: page empty

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: a0c63bf7b3c7 Remove more unnecessary GOST code
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=172a67cb180000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=98a93366cf9c5cde8d33

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/83eeec7794ed/disk-a0c63bf7.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/689cc4b68604/bsd-a0c63bf7.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ab50c1488b02/kernel-a0c63bf7.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+98a933...@syzkaller.appspotmail.com

panic: pool_do_get: pkpcb: page empty
Starting stack trace...
panic(ffffffff82945c77) at panic+0x16f sys/kern/subr_prf.c:229
pool_do_get(ffffffff82d658d0,9,ffff800033b6e288) at pool_do_get+0x40f sys/kern/subr_pool.c:726
pool_get(ffffffff82d658d0,9) at pool_get+0xf0 sys/kern/subr_pool.c:582
pfkeyv2_attach(ffff800010fde7c8,0,1) at pfkeyv2_attach+0xb1 sys/net/pfkeyv2.c:284
socreate(1e,ffff800033b6e3b8,3,0) at socreate+0x1ab pru_attach sys/sys/protosw.h:278 [inline]
socreate(1e,ffff800033b6e3b8,3,0) at socreate+0x1ab sys/kern/uipc_socket.c:212
sys_socket(ffff80002a2279c8,ffff800033b6e510,ffff800033b6e460) at sys_socket+0xdc sys/kern/uipc_syscalls.c:101
syscall(ffff800033b6e510) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff800033b6e510) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x34555c49f80, count: 249
End of stack trace.


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