ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Sep 22 22:47:03 2024 +0200| [8367d7e184562f8b9f410c0f325596f7e041884f] | committer: Michael Niedermayer
avcodec/imm4: Check input size Fixes: Timeout Fixes: 71324/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IMM4_fuzzer-5388489435185152 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=8367d7e184562f8b9f410c0f325596f7e041884f --- libavcodec/imm4.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/imm4.c b/libavcodec/imm4.c index a6da8fcf95..573b614833 100644 --- a/libavcodec/imm4.c +++ b/libavcodec/imm4.c @@ -453,6 +453,10 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *frame, if (ret < 0) return ret; + if (((avctx->width + 15) / 16) * ((avctx->height + 15) / 16) > get_bits_left(gb)) + return AVERROR_INVALIDDATA; + + if ((ret = ff_get_buffer(avctx, frame, (frame->flags & AV_FRAME_FLAG_KEY) ? AV_GET_BUFFER_FLAG_REF : 0)) < 0) return ret; _______________________________________________ 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".
