From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 4/6] avcodec/qdrw: adjust max colors to array size
Date: Sun, 3 Jul 2022 02:31:50 +0200
Message-ID: <20220703003152.17850-4-michael@niedermayer.cc> (raw)
In-Reply-To: <20220703003152.17850-1-michael@niedermayer.cc>
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
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/qdrw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c
index 849d4a5cad..ff8f97713d 100644
--- a/libavcodec/qdrw.c
+++ b/libavcodec/qdrw.c
@@ -368,7 +368,7 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *p,
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;
--
2.17.1
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next prev parent reply other threads:[~2022-07-03 0:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-03 0:31 [FFmpeg-devel] [PATCH 1/6] avcodec/wnv1: Check for width =1 Michael Niedermayer
2022-07-03 0:31 ` [FFmpeg-devel] [PATCH 2/6] tools/target_dec_fuzzer: Adjust threshold for WCMV Michael Niedermayer
2022-07-12 18:03 ` Michael Niedermayer
2022-07-03 0:31 ` [FFmpeg-devel] [PATCH 3/6] avcodec/mss4: Check image size with av_image_check_size2() Michael Niedermayer
2022-07-21 17:39 ` Michael Niedermayer
2022-07-03 0:31 ` Michael Niedermayer [this message]
2022-07-03 8:15 ` [FFmpeg-devel] [PATCH 4/6] avcodec/qdrw: adjust max colors to array size Paul B Mahol
2022-07-03 17:11 ` Michael Niedermayer
2022-07-03 0:31 ` [FFmpeg-devel] [PATCH 5/6] tools/target_dec_fuzzer: Adjust threshold for ylc Michael Niedermayer
2022-07-12 18:04 ` Michael Niedermayer
2022-07-03 0:31 ` [FFmpeg-devel] [PATCH 6/6] tools/target_dec_fuzzer: Adjust threshold for LOCO Michael Niedermayer
2022-07-12 18:04 ` Michael Niedermayer
2022-07-03 6:38 ` [FFmpeg-devel] [PATCH 1/6] avcodec/wnv1: Check for width =1 Andreas Rheinhardt
2022-07-04 15:44 ` Michael Niedermayer
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