ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jul 25 15:50:54 2021 +0200| [5e00eab61112c52f27a09fe77d50e6fc508f9c53] | committer: Michael Niedermayer
avcodec/webp: Check available space in loop in decode_entropy_coded_image() Fixes: Timeout Fixes: 35401/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WEBP_fuzzer-5714401821851648 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5e00eab61112c52f27a09fe77d50e6fc508f9c53 --- libavcodec/webp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/webp.c b/libavcodec/webp.c index 83371ef6fd..3efd4438d9 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -627,6 +627,9 @@ static int decode_entropy_coded_image(WebPContext *s, enum ImageRole role, while (y < img->frame->height) { int v; + if (get_bits_left(&s->gb) < 0) + return AVERROR_INVALIDDATA; + hg = get_huffman_group(s, img, x, y); v = huff_reader_get_symbol(&hg[HUFF_IDX_GREEN], &s->gb); if (v < NUM_LITERAL_CODES) { _______________________________________________ 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".
