login: [  57.7459266] panic: kernel diagnostic assertion "so->so_lock == NULL" failed: file "/syzkaller/managers/netbsd/kernel/sys/netipsec/keysock.c", line 386 
[  57.7459266] cpu0: Begin traceback...
[  57.7459266] vpanic() at netbsd:vpanic+0x214
[  57.7559490] _GLOBAL__sub_D_65535_0_cpu_configure() at netbsd:_GLOBAL__sub_D_65535_0_cpu_configure
[  57.7659717] key_attach_wrapper() at netbsd:key_attach_wrapper+0x2b5
[  57.7765588] socreate() at netbsd:socreate+0x218
[  57.7864358] makesocket() at netbsd:makesocket+0x80
[  57.7960327] sys_socketpair() at netbsd:sys_socketpair+0x1d1
[  57.8063028] sys___syscall() at netbsd:sys___syscall+0xe2
[  57.8260968] syscall() at netbsd:syscall+0x30e
[  57.8260968] --- syscall (number 198) ---
[  57.8361179] 76dc01c3f4aa:
[  57.8361179] cpu0: End traceback...

[  57.8361179] dumping to dev 4,1 (offset=0, size=0): not possible
[  57.8361179] rebooting...
SeaBIOS (version 1.8.2-20190204_181744-google)
Total RAM Size = 0x00000001e0000000 = 7680 MiB
CPUs found: 2     Max CPUs supported: 2
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f2a00: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Booting from Hard Disk 0...

>> NetBSD/x86 BIOS Boot, Revision 5.10 (Tue Jul 17 14:59:51 UTC 2018) (from NetBSD 8.0)
>> Memory: 639/3144640 k

     1. Boot normally
     2. Boot single user
     3. Disable ACPI
     4. Disable ACPI and SMP
     5. Drop to boot prompt