panic: bad arg kind: goroutine 23 [running]: github.com/google/syzkaller/prog.clone(0x0, 0x0, 0xc00014d878, 0xc001ee17a0, 0x40be26) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:79 +0x954 github.com/google/syzkaller/prog.clone(0x9a7c20, 0xc000255ef0, 0xc00014d878, 0xc00014d7c0, 0x40be26) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x17c github.com/google/syzkaller/prog.clone(0x9a7c60, 0xc000255f20, 0xc00014d878, 0xc001bf9440, 0xc001ee1768) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:44 +0x58f github.com/google/syzkaller/prog.(*Prog).Clone(0xc00026f2c0, 0x8f498f) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:24 +0x279 github.com/google/syzkaller/prog.(*randGen).resourceCentric(0xc001ce5840, 0xc001a2dcc0, 0xcb2d40, 0x1, 0x0, 0x0, 0x0, 0x8f498f) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:857 +0xc2 github.com/google/syzkaller/prog.(*ResourceType).generate(0xcb2d40, 0xc001ce5840, 0xc001a2dcc0, 0x20, 0x879360, 0xc001ccae40, 0x263e12008, 0x20) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:688 +0x282 github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc001ce5840, 0xc001a2dcc0, 0x9aed20, 0xcb2d40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:677 +0x506 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:626 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc001ce5840, 0xc001a2dcc0, 0xc9b960, 0x2, 0x2, 0x4eee93, 0xc001660000, 0x131cd6ca2e736987, 0xc00014dd50, 0x4ef20f, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:614 +0x107 github.com/google/syzkaller/prog.(*randGen).generateParticularCall(0xc001ce5840, 0xc001a2dcc0, 0xce91e0, 0x3, 0xc001a2dcc0, 0xc001ce5700) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:562 +0xc6 github.com/google/syzkaller/prog.(*randGen).generateCall(0xc001ce5840, 0xc001a2dcc0, 0xc001cc1200, 0x0, 0xc001cc1200, 0xc001cc1240, 0xc001a2dcc0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:554 +0xb2 github.com/google/syzkaller/prog.(*mutator).insertCall(0xc00014dec0, 0x14) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:141 +0xf2 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc001cc1200, 0x9a2460, 0xc0024a6000, 0x14, 0xc0027b3340, 0xc001f4c000, 0x209b, 0x2400) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:45 +0x2ea main.(*Proc).loop(0xc0027b3380) /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:259 +0x114c login: