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Diffstat (limited to 'src/encoding/hex/hex.go')
| -rw-r--r-- | src/encoding/hex/hex.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/encoding/hex/hex.go b/src/encoding/hex/hex.go index 375f583170..5a8243ae80 100644 --- a/src/encoding/hex/hex.go +++ b/src/encoding/hex/hex.go @@ -75,6 +75,9 @@ func DecodedLen(x int) int { return x / 2 } // If the input is malformed, Decode returns the number // of bytes decoded before the error. func Decode(dst, src []byte) (int, error) { + if len(dst) < DecodedLen(len(src)) { + return 0, errors.New("encoding/hex: output buffer too small") + } i, j := 0, 1 for ; j < len(src); j += 2 { p := src[j-1] |