Fixes: out of array read Fixes: 49434/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5208501080686592
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 | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 5f058d026f..65c3c402a2 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -1092,6 +1092,10 @@ static int ljpeg_decode_rgb_scan(MJpegDecodeContext *s, int nb_components, int p return AVERROR_INVALIDDATA; if (s->v_max != 1 || s->h_max != 1 || !s->lossless) return AVERROR_INVALIDDATA; + if (s->bayer) { + if (s->rct || s->pegasus_rct) + return AVERROR_INVALIDDATA; + } s->restart_count = s->restart_interval; @@ -1942,6 +1946,8 @@ static int mjpeg_decode_app(MJpegDecodeContext *s) } len -= 9; + if (s->bayer) + goto out; if (s->got_picture) if (rgb != s->rgb || pegasus_rct != s->pegasus_rct) { av_log(s->avctx, AV_LOG_WARNING, "Mismatching LJIF tag\n"); -- 2.17.1 _______________________________________________ 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".
