panic: bad arg kind: goroutine 25 [running]: github.com/google/syzkaller/prog.clone(0x0, 0x0, 0xc002283718, 0xc002e219e0, 0xc002e2bb90) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:79 +0x897 github.com/google/syzkaller/prog.clone(0x98eda0, 0xc00052af40, 0xc002283718, 0x98eda0, 0xc002e2cca0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x193 github.com/google/syzkaller/prog.clone(0x98eda0, 0xc00052afa0, 0xc002283718, 0x98eda0, 0xc002e2cbc0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x193 github.com/google/syzkaller/prog.clone(0x98eda0, 0xc00052b000, 0xc002283718, 0x98ed20, 0xc002e2b6c0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x193 github.com/google/syzkaller/prog.clone(0x98eda0, 0xc00052b020, 0xc002283718, 0x889bc0, 0xc00003c400) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x193 github.com/google/syzkaller/prog.clone(0x98ede0, 0xc00056a510, 0xc002283718, 0x98ed20, 0xc002e2b630) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:44 +0x774 github.com/google/syzkaller/prog.clone(0x98eda0, 0xc00052b040, 0xc002283718, 0xc002283798, 0xc002e34b00) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:57 +0x193 github.com/google/syzkaller/prog.clone(0x98ede0, 0xc00056a540, 0xc002283718, 0x98ed20, 0xc002e2b5d0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:44 +0x774 github.com/google/syzkaller/prog.(*Prog).Clone(0xc000546f40, 0x8f3c30) /syzkaller/gopath/src/github.com/google/syzkaller/prog/clone.go:24 +0x27a github.com/google/syzkaller/prog.(*randGen).resourceCentric(0xc0021f8920, 0xc002894730, 0xbf6d00, 0xc0028e2f00, 0x2, 0x1, 0x2, 0xc01040, 0xc0021d1b90) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:839 +0xc5 github.com/google/syzkaller/prog.(*ResourceType).generate(0xbf6d00, 0xc0021f8920, 0xc002894730, 0xc0028e3100, 0x84a560, 0xc00000d7a0, 0xc002283a98, 0x7aceb1, 0xc0021d1240) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:669 +0x285 github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0021f8920, 0xc002894730, 0x993a40, 0xbf6d00, 0xc000000000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x40b github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.regenerate(0xc0021f8920, 0xc002894730, 0x98ee20, 0xc0028e4390, 0x7c831d, 0x2ee, 0x993a40, 0xbf6d00) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:246 +0xa9 github.com/google/syzkaller/prog.(*ResourceType).mutate(0xbf6d00, 0xc0021f8920, 0xc002894730, 0x98ee20, 0xc0028e4390, 0xc0021f8548, 0xc8e160, 0xc, 0xc, 0xc0028e4330, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:315 +0x4d github.com/google/syzkaller/prog.(*Target).mutateArg(0xc0000756c0, 0xc0021f8920, 0xc002894730, 0x98ee20, 0xc0028e4390, 0xc0021f8548, 0xc8e160, 0xc, 0xc, 0xc0028e4330, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:229 +0xec github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc002283e18, 0xa) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:182 +0x275 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc0028e2ec0, 0x988a60, 0xc002af1650, 0x14, 0xc002ab1100, 0xc002d94000, 0x2697, 0x3000) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:47 +0x330 main.(*Proc).smashInput(0xc002ab1180, 0xc002908810) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:213 +0x133 main.(*Proc).loop(0xc002ab1180) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0x1aa created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:260 +0x1195