AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0I3fAQAA///PCC46") panic: replaceArg: group fields don't match: 0/1 goroutine 26 [running]: github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0250082e0?}, {0xe56770?, 0xc0250085c0?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:377 +0x425 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc025008220?}, {0xe56770?, 0xc025008520?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc025008020?}, {0xe56770?, 0xc025008460?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc024c11fe0?}, {0xe56770?, 0xc025008440?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc024c11fc0?}, {0xe56770?, 0xc025008420?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc024c11fa0?}, {0xe56770?, 0xc025008400?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc024c11f80?}, {0xe56770?, 0xc0250083e0?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc024c11f60?}, {0xe56770?, 0xc0250083a0?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc024c11f00?}, {0xe56770?, 0xc025008380?}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345 github.com/google/syzkaller/prog.(*StructType).mutate(0x16d4620, 0xc025008300, 0xc00a61c460, {0xe56770, 0xc024c11ea0?}, {0xc00a61c418, {0x1db7580, 0x4, 0x4}, 0xc00a7e9a40, ...}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:490 +0x185 github.com/google/syzkaller/prog.(*Target).mutateArg(0x418408?, 0xc0116a35e0?, 0xc000c23dc8?, {0xe56770, 0xc024c11ea0}, {0xc00a61c418, {0x1db7580, 0x4, 0x4}, 0xc00a7e9a40, ...}, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:245 +0xe2 github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc000c23e48) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:196 +0x245 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc0268761c0, {0xe52aa8?, 0xc0289c4bd0}, 0x1e, 0xc029bdc100, 0xc00007ee70, {0xc01f614000, 0x10796, 0x11000}) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:51 +0x2ba main.(*Proc).loop(0xc029bdc140) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:95 +0x365 created by main.main in goroutine 1 /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:336 +0x1665