SYZFAIL: syz_usb_connect: vhci_open failed

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: b960aff9 make(1): add test for modifier parts in ':=' assi..
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=13528e7ad00000
kernel config: https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=a9217b08bf2ce0e96a71
compiler: clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)

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+a9217b...@syzkaller.appspotmail.com

SYZFAIL: syz_usb_connect: vhci_open failed
(errno 0: Undefined error: 0)
SYZFAIL: child failed


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[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: b960aff9 make(1): add test for modifier parts in ':=' assi..
git tree: netbsd

console output: https://syzkaller.appspot.com/x/log.txt?x=10f31cccd00000

kernel config: https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=a9217b08bf2ce0e96a71
compiler: clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172987a6d00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a9217b...@syzkaller.appspotmail.com

SYZFAIL: syz_usb_connect: vhci_open failed
(errno 0: Undefined error: 0)
SYZFAIL: child failed

(errno 24: Too many open files)