perf_event_open(&(0x7f00000004c0)={0x0, 0x80, 0x0, 0x20, 0x0, 0x16, 0x0, 0x3ff, 0x1084, 0xa, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x2, 0x2, @perf_bp={&(0x7f0000000380), 0x2}, 0x10000, 0x6, 0x400, 0x3, 0x81, 0xcbd, 0x0, 0x0, 0x3}, 0x0, 0x0, 0xffffffffffffffff, 0x0)
panic: bad group arg size 96, should be <= 0 for &prog.GroupArg{ArgCommon:prog.ArgCommon{ref:0x2de, dir:0x0}, Inner:[]prog.Arg{}} type "array"

goroutine 29 [running]:
github.com/google/syzkaller/prog.foreachArgImpl({0x8b4158, 0xc02b0770e0}, 0xc02b09ec40, 0xc029899d00)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:157 +0x5d9
github.com/google/syzkaller/prog.foreachArgImpl({0x8b4198, 0xc02b0ad5f0}, 0xc02b09ec40, 0xc029899d00)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:164 +0x337
github.com/google/syzkaller/prog.ForeachArg(0xc02aeffe00, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:123 +0x105
github.com/google/syzkaller/prog.(*Prog).MutateWithHints(0xc02ad61040, 0x0, 0xc02b08f3b0, 0xc029899d80)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/hints.go:78 +0xaa
main.(*Proc).executeHintSeed(0xc02ad61040, 0xcf3, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:248 +0xd2
main.(*Proc).smashInput(0xc02ad61040, 0xc0176b6020)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:214 +0x88
main.(*Proc).loop(0xc02ad61040)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0x125
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:307 +0x15a5