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[FFmpeg-devel,2/3] avcodec/magicyuv: correct end of array check in multi VLC parsing

Message ID 20231022153951.11381-2-michael@niedermayer.cc
State Accepted
Commit 4ddf4f5001ca6fd3525e4acb62c19627fdb76f8e
Headers show
Series [FFmpeg-devel,1/3] avcodec/bitstream_template: Basic documentation for read_vlc_multi() | expand

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Commit Message

Michael Niedermayer Oct. 22, 2023, 3:39 p.m. UTC
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(-)
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Patch

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) {