ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Nov 15 21:17:05 2015 +0100| [65d3359fb366ea265a8468d76a111cb7352f0b55] | committer: Michael Niedermayer
avcodec/jpeg2000dec: Fix potential integer overflow with tile dimensions Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=65d3359fb366ea265a8468d76a111cb7352f0b55 --- libavcodec/jpeg2000dec.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index 06cf4b7..4604e73 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -830,10 +830,10 @@ static int init_tile(Jpeg2000DecoderContext *s, int tileno) if (!tile->comp) return AVERROR(ENOMEM); - tile->coord[0][0] = av_clip(tilex * s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); - tile->coord[0][1] = av_clip((tilex + 1) * s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); - tile->coord[1][0] = av_clip(tiley * s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); - tile->coord[1][1] = av_clip((tiley + 1) * s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); + tile->coord[0][0] = av_clip(tilex * (int64_t)s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); + tile->coord[0][1] = av_clip((tilex + 1) * (int64_t)s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); + tile->coord[1][0] = av_clip(tiley * (int64_t)s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); + tile->coord[1][1] = av_clip((tiley + 1) * (int64_t)s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); for (compno = 0; compno < s->ncomponents; compno++) { Jpeg2000Component *comp = tile->comp + compno; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
