diff options
Diffstat (limited to 'libavcodec/diracdec.c')
| -rw-r--r-- | libavcodec/diracdec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c index d678363875..272f2b4011 100644 --- a/libavcodec/diracdec.c +++ b/libavcodec/diracdec.c @@ -906,6 +906,10 @@ static int decode_lowdelay(DiracContext *s) for (slice_x = 0; bufsize > 0 && slice_x < s->num_x; slice_x++) { bytes = (slice_num+1) * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den - slice_num * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den; + if (bytes >= INT_MAX || bytes*8 > bufsize) { + av_log(s->avctx, AV_LOG_ERROR, "too many bytes\n"); + return AVERROR_INVALIDDATA; + } slices[slice_num].bytes = bytes; slices[slice_num].slice_x = slice_x; slices[slice_num].slice_y = slice_y; |