Michael Niedermayer: > Fixes: CID1439654 Untrusted pointer read > > Sponsored-by: Sovereign Tech Fund > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/cbs_jpeg.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/libavcodec/cbs_jpeg.c b/libavcodec/cbs_jpeg.c > index b1b58dcd65e..406147c082c 100644 > --- a/libavcodec/cbs_jpeg.c > +++ b/libavcodec/cbs_jpeg.c > @@ -146,13 +146,13 @@ static int > cbs_jpeg_split_fragment(CodedBitstreamContext *ctx, > } > } else { > i = start; > - if (i + 2 > frag->data_size) { > + if (i > frag->data_size - 2) { > av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid JPEG image: " > "truncated at %02x marker.\n", marker); > return AVERROR_INVALIDDATA; > } > length = AV_RB16(frag->data + i); > - if (i + length > frag->data_size) { > + if (length > frag->data_size - i) { > av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid JPEG image: " > "truncated at %02x marker segment.\n", marker); > return AVERROR_INVALIDDATA;
You should always mention when you are not fixing bugs in our code, but rather intend to apply workaround for coverity crazyness (i.e. the requirement that reading values in non-native endianness needs to be sanitized). - Andreas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".