ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jul 3 13:31:19 2022 +0200| [b4431399ec1e10afff458cf1ffae2a75987d725a] | committer: Michael Niedermayer
avcodec/ffv1dec: Limit golomb rice coded slices to width 8M This limit is possibly not reachable due to other restrictions on buffers but the decoder run table is too small beyond this, so explicitly check for it. Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b4431399ec1e10afff458cf1ffae2a75987d725a --- libavcodec/ffv1dec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index 365f8b77a7..7731c15c87 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -187,6 +187,9 @@ static int decode_slice_header(const FFV1Context *f, FFV1Context *fs) || (unsigned)fs->slice_y + (uint64_t)fs->slice_height > f->height) return -1; + if (fs->ac == AC_GOLOMB_RICE && fs->slice_width >= (1<<23)) + return AVERROR_INVALIDDATA; + for (i = 0; i < f->plane_count; i++) { PlaneContext * const p = &fs->plane[i]; int idx = get_symbol(c, state, 0); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
