[FFmpeg-cvslog] avcodec/qdrw: adjust max colors to array size
Michael Niedermayer
git at videolan.org
Fri Oct 28 22:16:45 EEST 2022
ffmpeg | branch: release/2.8 | Michael Niedermayer <michael at niedermayer.cc> | Sun Jul 3 00:43:21 2022 +0200| [bafac17227a5757af3d9ead9ac9bef5330254a31] | committer: Michael Niedermayer
avcodec/qdrw: adjust max colors to array size
Fixes: out of array access
Fixes: 48429/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDRAW_fuzzer-4608329791438848
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit cd847f86d31f87f0f7733ca6ab7a2c022a1398bd)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bafac17227a5757af3d9ead9ac9bef5330254a31
---
libavcodec/qdrw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c
index a7ea45fced..b41eefa790 100644
--- a/libavcodec/qdrw.c
+++ b/libavcodec/qdrw.c
@@ -216,7 +216,7 @@ static int decode_frame(AVCodecContext *avctx,
bytestream2_skip(&gbc, 18);
colors = bytestream2_get_be16(&gbc);
- if (colors < 0 || colors > 256) {
+ if (colors < 0 || colors > 255) {
av_log(avctx, AV_LOG_ERROR,
"Error color count - %i(0x%X)\n", colors, colors);
return AVERROR_INVALIDDATA;
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