ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jul 3 13:31:19 2022 +0200| [f2039a7ba377b598b0af5f110644e76abd879bf2] | 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> (cherry picked from commit b4431399ec1e10afff458cf1ffae2a75987d725a) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f2039a7ba377b598b0af5f110644e76abd879bf2 --- libavcodec/ffv1dec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index 8516fef5d7..5a365a5e31 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -185,6 +185,9 @@ static int decode_slice_header(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".
