Skip to content
Permalink
Browse files Browse the repository at this point in the history
avcodec/jpeg2000dec: non zero image offsets are not supported
Fixes out of array accesses
Fixes Ticket3080
Found-by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  • Loading branch information
michaelni committed Oct 26, 2013
1 parent 3c9dd93 commit 780669e
Showing 1 changed file with 5 additions and 0 deletions.
5 changes: 5 additions & 0 deletions libavcodec/jpeg2000dec.c
Expand Up @@ -243,6 +243,11 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz
ncomponents = bytestream2_get_be16u(&s->g); // CSiz

if (s->image_offset_x || s->image_offset_y) {
avpriv_request_sample(s->avctx, "Support for image offsets");
return AVERROR_PATCHWELCOME;
}

if (ncomponents <= 0) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid number of components: %d\n",
s->ncomponents);
Expand Down

0 comments on commit 780669e

Please sign in to comment.