Fixes: out of array write Fixes: 17088/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-5654877765632000
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/mjpegdec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 5a80b7d289..f095afaed8 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -1071,6 +1071,10 @@ static int ljpeg_decode_rgb_scan(MJpegDecodeContext *s, int nb_components, int p int resync_mb_x = 0; int vpred[6]; + if (!s->bayer && s->nb_components < 3) + return AVERROR_INVALIDDATA; + if (s->bayer && s->nb_components > 2) + return AVERROR_INVALIDDATA; if (s->nb_components <= 0 || s->nb_components > 4) return AVERROR_INVALIDDATA; if (s->v_max != 1 || s->h_max != 1 || !s->lossless) -- 2.23.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
