SYZFAIL: clone failed (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 780a4667bbde wg.4: Document kernel config option
git tree: freebsd-src
console output: https://syzkaller.appspot.com/x/log.txt?x=151b9878580000
dashboard link: https://syzkaller.appspot.com/bug?extid=2ca987c8cfb01156ae48

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

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2ca987...@syzkaller.appspotmail.com

SYZFAIL: clone failed
(errno 35: Resource temporarily unavailable)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: tun: can't open device
device=/dev/tap4 (errno 16: Device busy)
SYZFAIL: repeatedly failed to execute the program
proc=4 req=440 state=1 status=67 (errno 9: Bad file descriptor)


FreeBSD/amd64 (ci-freebsd-main-5.us-central1-b.c.syzkaller.internal) (ttyu0)

login: set $lines = 0
Password:
Login incorrect
login: show registers
Password:
Login incorrect
login: ps
Password:
Login incorrect
login: show malloc
ktrace write failed, errno 27, tracing stopped for pid 8482
Password:
Login incorrect


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