ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Wed Nov 8 01:44:07 2023 +0100| [b7629809486702a6d693b9b49984a808d991ed1e] | committer: Michael Niedermayer
avcodec/4xm: Check for cfrm exhaustion Fixes: index -1 out of bounds for type 'CFrameBuffer [100]' Fixes: 63877/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5854263397711872 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit bb0a684d93f793457f7bff3940a1398eb9e91703) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b7629809486702a6d693b9b49984a808d991ed1e --- libavcodec/4xm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c index cbd8637763..dcb21a4ac2 100644 --- a/libavcodec/4xm.c +++ b/libavcodec/4xm.c @@ -886,6 +886,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, } if (i >= CFRAME_BUFFER_COUNT) { + if (free_index < 0) + return AVERROR_INVALIDDATA; i = free_index; f->cfrm[i].id = id; } _______________________________________________ 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".
