From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 2/3] avcodec/magicyuv: correct end of array check in multi VLC parsing
Date: Sun, 22 Oct 2023 17:39:50 +0200
Message-ID: <20231022153951.11381-2-michael@niedermayer.cc> (raw)
In-Reply-To: <20231022153951.11381-1-michael@niedermayer.cc>
Fixes: out of array write
Fixes: 63390/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MAGICYUV_fuzzer-5144552979431424.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/magicyuv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/magicyuv.c b/libavcodec/magicyuv.c
index 3573db0f0ad..d813f209203 100644
--- a/libavcodec/magicyuv.c
+++ b/libavcodec/magicyuv.c
@@ -299,7 +299,7 @@ static int magy_decode_slice(AVCodecContext *avctx, void *tdata,
return ret;
for (k = 0; k < height; k++)
- READ_PLANE(dst, i, 1, 5)
+ READ_PLANE(dst, i, 1, 7)
}
switch (pred) {
--
2.17.1
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next prev parent reply other threads:[~2023-10-22 15:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-22 15:39 [FFmpeg-devel] [PATCH 1/3] avcodec/bitstream_template: Basic documentation for read_vlc_multi() Michael Niedermayer
2023-10-22 15:39 ` Michael Niedermayer [this message]
2023-10-22 15:39 ` [FFmpeg-devel] [PATCH 3/3] avcodec/magicyuv: remove redundant check in inner loop Michael Niedermayer
2023-10-26 22:45 ` [FFmpeg-devel] [PATCH 1/3] avcodec/bitstream_template: Basic documentation for read_vlc_multi() Michael Niedermayer
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