diff options
Diffstat (limited to 'libavcodec/mss2.c')
| -rw-r--r-- | libavcodec/mss2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c index 74e52af6cd..c640934986 100644 --- a/libavcodec/mss2.c +++ b/libavcodec/mss2.c @@ -210,8 +210,13 @@ static int decode_555(GetByteContext *gB, uint16_t *dst, int stride, last_symbol = b << 8 | bytestream2_get_byte(gB); else if (b > 129) { repeat = 0; - while (b-- > 130) + while (b-- > 130) { + if (repeat >= (INT_MAX >> 8) - 1) { + av_log(NULL, AV_LOG_ERROR, "repeat overflow\n"); + return AVERROR_INVALIDDATA; + } repeat = (repeat << 8) + bytestream2_get_byte(gB) + 1; + } if (last_symbol == -2) { int skip = FFMIN((unsigned)repeat, dst + w - p); repeat -= skip; |