panic: bad arg kind: <nil>
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