panic: bad arg kind: <nil> (11)

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 16171a6c Support the application escape sequence mintty (m..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15ad38d7e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=425854799956484706ac

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

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+425854...@syzkaller.appspotmail.com

panic: bad arg kind: <nil>

goroutine 24 [running]:
github.com/google/syzkaller/prog.clone(0x0, 0x0, 0xc002821e38, 0xc0012a78c0, 0xc00134c980)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:79 +0x954
github.com/google/syzkaller/prog.(*Prog).Clone(0xc0004e9f80, 0xc0014ea2a0)
/syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:24 +0x279
main.(*Proc).loop(0xc001494940)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:94 +0x3ca
created by main.main
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:259 +0x114c



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[Anton Lindqvist]

#syz invalid