last executing test programs:

5.505366054s ago: executing program 5:
r0 = socket$inet(0x2, 0x2, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
r2 = dup2(r0, r1)
mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5)
getsockname(r2, &(0x7f0000000380)=@family, &(0x7f0000000400)=0xe)

5.313267114s ago: executing program 3:
r0 = socket$inet6(0x18, 0x3, 0x0)
sendto$inet6(r0, &(0x7f0000000000)="88", 0x180, 0x2, &(0x7f0000000040)={0x18, 0x3}, 0x1c)

4.413424464s ago: executing program 3:
mkdir(&(0x7f0000000080)='./file0\x00', 0x0)
compat_50___msgctl13$IPC_STAT(0x0, 0x2, &(0x7f0000000280)={{}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000100), 0xdffffffffffff7ff}})
lchown(&(0x7f0000000100)='./file0\x00', 0x0, 0xffffffffffffffff)
compat_40_mount(&(0x7f0000000380)='union\x00', &(0x7f0000000140)='./file0\x00', 0x3, &(0x7f00000001c0))
access(&(0x7f0000000040)='./file0\x00', 0x1)

4.253493349s ago: executing program 5:
r0 = compat_30_socket(0x22, 0x3, 0x0)
compat_50___fstat30(r0, 0x0)

2.857456766s ago: executing program 0:
munmap(&(0x7f0000001000/0x3000)=nil, 0x3000)
connect$unix(0xffffffffffffffff, &(0x7f0000001180)=@file={0x0, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0xd)

2.331659568s ago: executing program 1:
__stat50(&(0x7f0000001200)='./file0\x00', 0x0)
compat_40_mount(0x0, 0x0, 0x0, 0x0)
symlink(&(0x7f0000000080)='.\x00', &(0x7f0000000240)='./file0\x00')
compat_40_mount(&(0x7f0000000180)='puffs\x00', &(0x7f0000000000)='./file0\x00', 0x0, &(0x7f0000000300)="1e")

1.894335236s ago: executing program 1:
recvmmsg(0xffffffffffffffff, &(0x7f0000000080)={&(0x7f0000000100)={&(0x7f00000006c0), 0xe, 0x0, 0x0, 0x0}}, 0x10, 0x0, 0x0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
mknod(&(0x7f0000000100)='./file0\x00', 0x0, 0x5300)
sendmmsg(r0, &(0x7f0000000080)={0x0}, 0x10, 0x0, 0x0)

1.771237095s ago: executing program 3:
symlink(&(0x7f0000000080)='.\x00', &(0x7f0000000240)='./file0\x00')
compat_50___msgctl13$IPC_STAT(0x0, 0x2, &(0x7f00000003c0)={{}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000100), 0x3}})
lchown(&(0x7f0000000100)='./file0\x00', 0x0, 0xffffffffffffffff)
compat_40_mount(&(0x7f0000000380)='union\x00', &(0x7f0000000140)='./file0\x00', 0x0, &(0x7f00000001c0))
pathconf(0x0, 0x0)
r0 = open$dir(&(0x7f0000000000)='.\x00', 0x0, 0x0)
getpid()
compat_50_futimes(r0, 0x0)

1.575304385s ago: executing program 0:
mknod(&(0x7f0000000200)='./file0\x00', 0x2000, 0x287e)
mknod(&(0x7f00000000c0)='./bus\x00', 0x2000, 0x4f4b)
open$dir(&(0x7f0000000040)='./bus\x00', 0x0, 0x0)
open(&(0x7f00000000c0)='./file0\x00', 0x0, 0x0)
compat_50_select(0x40, &(0x7f0000000200)={0xfffffffffffffffe}, 0x0, 0x0, 0x0)

828.810671ms ago: executing program 2:
mknod(0x0, 0x0, 0x0)
socketpair(0x10, 0x2, 0x0, 0x0)

694.656152ms ago: executing program 5:
mknod(&(0x7f0000000100)='./file0\x00', 0x6000, 0x500)
mkdirat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x0)
swapctl$SWAP_ON(0x7, &(0x7f0000000000), 0x0)

656.635748ms ago: executing program 4:
compat_40_mount(&(0x7f0000000040)='tmpfs\x00', &(0x7f00000005c0)='.\x00', 0x0, &(0x7f00000002c0)="01")
compat_50___msgctl13$IPC_STAT(0x0, 0x2, &(0x7f0000000280)={{}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000100)}})
lchown(&(0x7f0000000100)='./file0\x00', 0x0, 0xffffffffffffffff)
symlink(&(0x7f0000000080)='.\x00', &(0x7f0000000240)='./file0\x00')
sendmsg$unix(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180)=@abs={0x0, 0x0, 0x2}, 0x8, &(0x7f0000000200)}, 0x0)
compat_40_mount(&(0x7f0000000140)='umap\x00', &(0x7f0000000040)='./file0\x00', 0x0, &(0x7f00000001c0))
mkdir(&(0x7f0000000300)='./control\x00', 0x0)
r0 = open(&(0x7f0000022ff6)='./control\x00', 0x0, 0x0)
mkdirat(r0, &(0x7f0000000100)='./control\x00', 0x0)
rmdir(&(0x7f0000000040)='./control\x00')

554.055353ms ago: executing program 2:
symlink(0x0, &(0x7f0000000240)='./file0\x00')
compat_43_ommap(&(0x7f0000ffc000/0x1000)=nil, 0x1000, 0x0, 0xa93, 0xffffffffffffffff, 0x0)

434.246083ms ago: executing program 1:
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000640)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
fktrace(r0, 0x4, 0x62e2dd08f149ff1b, 0x0)
getpgrp()

171.878563ms ago: executing program 4:
mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5)
symlink(&(0x7f0000000080)='.\x00', 0x0)

0s ago: executing program 0:
r0 = socket$inet(0x2, 0x2, 0x0)
compat_40_mount(&(0x7f0000000080)='tmpfs\x00', 0x0, 0x0, 0x0)
r1 = open(&(0x7f0000000140)='./file0\x00', 0x200, 0x0)
r2 = open(&(0x7f00000000c0)='./file0\x00', 0x205, 0x0)
fcntl$lock(r2, 0x9, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x1000300010006})
fcntl$lock(r1, 0x9, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x100000001})
fcntl$lock(r0, 0xa, 0x0)

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.0.244' (ED25519) to the list of known hosts.
2024/06/17 21:32:10 fuzzer started
2024/06/17 21:32:11 dialing manager at 10.128.0.163:30036
2024/06/17 21:32:12 starting 6 executor processes
login: Jun 17 21:32:19 ci2-netbsd-1 shutdown: poweroff by root: power button pressed 
[ 188.6463074] puffs_mount: pa_spare[91] = 0x69662f2e
serialport: VM disconnected.