panic: bad arg kind: goroutine 26 [running]: github.com/google/syzkaller/prog.clone(0x0, 0x0, 0xc000501288, 0xc0035be480, 0xc0035b8720) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:79 +0x91b github.com/google/syzkaller/prog.(*Prog).Clone(0xc0015daf00, 0x9015b6) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:24 +0x279 github.com/google/syzkaller/prog.(*randGen).resourceCentric(0xc003197500, 0xc00228fef0, 0xcafba0, 0x0, 0x0, 0x0, 0xc00250eaa0, 0xc000501528, 0x792dc9) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:839 +0xc2 github.com/google/syzkaller/prog.(*ResourceType).generate(0xcafba0, 0xc003197500, 0xc00228fef0, 0x0, 0x9b4740, 0xc00250eaa0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:669 +0x27c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc003197500, 0xc00228fef0, 0x9bac00, 0xcafba0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc003197500, 0xc00228fef0, 0xd46f20, 0xc, 0xc, 0xaaaaaaaaaaaaaa00, 0x38, 0x8, 0x0, 0x0, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:596 +0x116 github.com/google/syzkaller/prog.(*StructType).generate(0xcbc500, 0xc003197500, 0xc00228fef0, 0x0, 0xd806c0, 0x0, 0x0, 0x20, 0x20) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:780 +0x7c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc003197500, 0xc00228fef0, 0x9bace0, 0xcbc500, 0x420000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc003197500, 0xc00228fef0, 0xcb7ca0, 0x2, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:596 +0x116 github.com/google/syzkaller/prog.(*StructType).generate(0xcbc6e0, 0xc003197500, 0xc00228fef0, 0x0, 0xd806c0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:780 +0x7c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc003197500, 0xc00228fef0, 0x9bace0, 0xcbc6e0, 0xd80000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.(*UnionType).mutate(0xcb76e0, 0xc003197500, 0xc00228fef0, 0x9b4880, 0xc0031972e0, 0xc003197188, 0xcb76a0, 0x2, 0x2, 0xc002524900, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:457 +0x178 github.com/google/syzkaller/prog.(*Target).mutateArg(0xc000079520, 0xc003197500, 0xc00228fef0, 0x9b4880, 0xc0031972e0, 0xc003197188, 0xcb76a0, 0x2, 0x2, 0xc002524900, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:229 +0xe3 github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc000501ec0, 0xa) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:182 +0x288 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc0025427c0, 0x9ade40, 0xc002037530, 0x14, 0xc002d0fe80, 0xc002ad8000, 0x26e6, 0x3000) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:47 +0x32c main.(*Proc).loop(0xc002d0ffc0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:95 +0x434 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:260 +0x1188 OpenBSD/amd64 (ci-openbsd-main-2.c.syzkaller.internal) (tty00) login: