panic: bad arg kind: goroutine 24 [running]: github.com/google/syzkaller/prog.clone(0x0, 0x0, 0xc00014d770, 0xc00167ba00, 0xc001696840) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:79 +0x954 github.com/google/syzkaller/prog.clone(0x9a74c0, 0xc00032bf80, 0xc00014d770, 0x9a74c0, 0xc001698210) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x17c github.com/google/syzkaller/prog.clone(0x9a74c0, 0xc0004b8000, 0xc00014d770, 0xc00014d4c8, 0x40be26) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x17c github.com/google/syzkaller/prog.clone(0x9a7500, 0xc0004b85d0, 0xc00014d770, 0x9a7440, 0xc0016967c0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:44 +0x58f github.com/google/syzkaller/prog.clone(0x9a74c0, 0xc0004b8600, 0xc00014d770, 0xc00014d7f0, 0x40be26) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x17c github.com/google/syzkaller/prog.clone(0x9a7500, 0xc0004b8630, 0xc00014d770, 0x9a7440, 0xc001696780) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:44 +0x58f github.com/google/syzkaller/prog.(*Prog).Clone(0xc000523e40, 0x8f4b32) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:24 +0x279 github.com/google/syzkaller/prog.resourceCentric(0xcb5fe0, 0xc0031b1e50, 0xc003038d80, 0x8f1401, 0xc00014d9f0, 0x448dce, 0xc00263fa70) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:848 +0xbf github.com/google/syzkaller/prog.(*ResourceType).generate(0xcb5fe0, 0xc003038d80, 0xc0031b1e50, 0x10, 0x879220, 0xc001dc85a0, 0xc000040380, 0x10) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:681 +0x920 github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc003038d80, 0xc0031b1e50, 0x9ae600, 0xcb5fe0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:674 +0x506 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:623 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc003038d80, 0xc0031b1e50, 0xc97f40, 0x1, 0x1, 0xc00014dd58, 0xf8f34aac, 0xc122c0c2d9a9e266, 0xc00014dd90, 0x789b3e, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:611 +0x107 github.com/google/syzkaller/prog.(*randGen).generateParticularCall(0xc003038d80, 0xc0031b1e50, 0xceb860, 0x136, 0xc0031b1e50, 0xc002304a80) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:555 +0xc6 github.com/google/syzkaller/prog.(*randGen).generateCall(0xc003038d80, 0xc0031b1e50, 0xc002304580, 0x2, 0xc002304580, 0xc002304740, 0xc0031b1e50) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:547 +0xb2 github.com/google/syzkaller/prog.(*mutator).insertCall(0xc00014dec0, 0x14) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:137 +0xf2 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc002304580, 0x9a1d40, 0xc002b04930, 0x1e, 0xc001d7a040, 0xc000d6a000, 0x1eff, 0x2400) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:42 +0x29b main.(*Proc).loop(0xc001d7a0c0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:99 +0x434 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:259 +0x114c