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authorMichael Niedermayer <michael@niedermayer.cc>2023-01-12 23:42:59 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2023-02-25 22:50:36 +0100
commitff5cce2eafeb5f94917ffab913bbaed921c4d51c (patch)
treedd8ce8b08b8984cbb1edce656ca7934c03296d6d
parent1eb1acb62b5afe215643a55f06c16545e5b20fb6 (diff)
downloadffmpeg-ff5cce2eafeb5f94917ffab913bbaed921c4d51c.tar.gz
avcodec/motionpixels: Mask pixels to valid values
Fixes: out of array access Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MOTIONPIXELS_fuzzer-6724203352555520 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit ac6eec1fc258efce219e4fccb84312a1b13a7a23) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/motionpixels.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/motionpixels.c b/libavcodec/motionpixels.c
index 4141c5a495..a947ca05de 100644
--- a/libavcodec/motionpixels.c
+++ b/libavcodec/motionpixels.c
@@ -185,7 +185,7 @@ static YuvPixel mp_get_yuv_from_rgb(MotionPixelsContext *mp, int x, int y)
int color;
color = *(uint16_t *)&mp->frame->data[0][y * mp->frame->linesize[0] + x * 2];
- return mp_rgb_yuv_table[color];
+ return mp_rgb_yuv_table[color & 0x7FFF];
}
static void mp_set_rgb_from_yuv(MotionPixelsContext *mp, int x, int y, const YuvPixel *p)