This is an automated email from the git hooks/post-receive script. Git pushed a commit to branch release/4.4 in repository ffmpeg.
commit 8600ea76680e6a5c4229c15d8e53acae0b0db159 Author: Michael Niedermayer <[email protected]> AuthorDate: Tue Feb 10 02:37:58 2026 +0100 Commit: Michael Niedermayer <[email protected]> CommitDate: Tue May 5 18:55:02 2026 +0200 avcodec/flashsv: Check for input space before (re)allocating frame Fixes: Timeout Fixes: 471605680/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FLASHSV2_DEC_fuzzer-6210773459468288 Fixes: 471605920/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FLASHSV_DEC_fuzzer-6230719287590912 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit 4446dfb0e326fcc6228476d1efeb9cdaea088702) Signed-off-by: Michael Niedermayer <[email protected]> --- libavcodec/flashsv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/flashsv.c b/libavcodec/flashsv.c index 9481f80f0b..787e8d57aa 100644 --- a/libavcodec/flashsv.c +++ b/libavcodec/flashsv.c @@ -310,6 +310,9 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, v_blocks = s->image_height / s->block_height; v_part = s->image_height % s->block_height; + if (h_blocks * v_blocks * 16 > get_bits_left(&gb)) + return AVERROR_INVALIDDATA; + /* the block size could change between frames, make sure the buffer * is large enough, if not, get a larger one */ if (s->block_size < s->block_width * s->block_height) { _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
