Skip to content

panic: runtime error: index out of range in bcjX86Filter #3

Closed
Closed
panic: runtime error: index out of range in bcjX86Filter#3

Description

@ebfe
ebfe
opened on Jul 21, 2015
package main

import (
    "bytes"
    "encoding/hex"
    "fmt"
    "io/ioutil"

    "xi2.org/x/xz"
)

func main() {
    in, err := hex.DecodeString(`fd377a585a000004e6d6b4460201040021010800d2b974cbe0303030305d3030914584683bdedea84b03d83553a49173a3e51b1e5b1d4af106c1ae79ea4562760c29cd4bafb0003030303030303030303030303030303030303030303030`)
    if err != nil {
        panic(err)
    }

    r, err := xz.NewReader(bytes.NewReader(in), 0)
    if err != nil {
        fmt.Println(err)
    }
    _, err = ioutil.ReadAll(r)
    if err != nil {
        fmt.Println(err)
    }
}
panic: runtime error: index out of range [recovered]
    panic: runtime error: index out of range

goroutine 1 [running]:
io/ioutil.readAll.func1(0xc82003be48)
    /src/go/src/io/ioutil/ioutil.go:30 +0x11e
xi2.org/x/xz.bcjX86Filter(0xc820054070, 0xc82009a000, 0x49, 0x2000, 0x10000)
    /go/src/xi2.org/x/xz/dec_bcj.go:111 +0x3eb
xi2.org/x/xz.bcjApply(0xc820054070, 0xc82009a000, 0x49, 0x2000, 0xc82003ba40)
    /go/src/xi2.org/x/xz/dec_bcj.go:289 +0x8b
xi2.org/x/xz.xzDecBCJRun(0xc820054070, 0xc82009e000, 0xc82005a0c0, 0x10000)
    /go/src/xi2.org/x/xz/dec_bcj.go:370 +0x4fa
xi2.org/x/xz.decBlock(0xc82009c000, 0xc82005a0c0, 0xc82007b801)
    /go/src/xi2.org/x/xz/dec_stream.go:251 +0x7a
xi2.org/x/xz.decMain(0xc82009c000, 0xc82005a0c0, 0x5e)
    /go/src/xi2.org/x/xz/dec_stream.go:651 +0x56b
xi2.org/x/xz.xzDecRun(0xc82009c000, 0xc82005a0c0, 0x2000)
    /go/src/xi2.org/x/xz/dec_stream.go:755 +0x41
xi2.org/x/xz.(*Reader).decode(0xc8200a6000, 0xc8200a6020)
    /go/src/xi2.org/x/xz/reader.go:117 +0x2c9
xi2.org/x/xz.(*Reader).Read(0xc8200a6000, 0xc8200b4000, 0x200, 0x200, 0x0, 0x0, 0x0)
    /go/src/xi2.org/x/xz/reader.go:163 +0x370
bytes.(*Buffer).ReadFrom(0xc82003bda0, 0x7f0d9782d1e8, 0xc8200a6000, 0x0, 0x0, 0x0)
    /src/go/src/bytes/buffer.go:173 +0x23f
io/ioutil.readAll(0x7f0d9782d1e8, 0xc8200a6000, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0)
    /src/go/src/io/ioutil/ioutil.go:33 +0x154
io/ioutil.ReadAll(0x7f0d9782d1e8, 0xc8200a6000, 0x0, 0x0, 0x0, 0x0, 0x0)
    /src/go/src/io/ioutil/ioutil.go:42 +0x51
main.main()
    /t.go:22 +0x277
exit status 2

found using https://github.com/dvyukov/go-fuzz.

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions