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Code Issues Releases Activity

avcodec/cfhd: Fix invalid left shift of negative value

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Fixes: runtime error: left shift of negative value -1
Fixes: 2395/clusterfuzz-testcase-minimized-6540529313513472

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 c709f009dad20d99b28918f4f8d7cd394b838def)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-28 20:47:59 +02:00
parent 132037ad5b
commit 94c8e53034
1 changed files with 1 additions and 1 deletions

2
libavcodec/cfhd.c

@ -663,7 +663,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
output = s->plane[plane].subband[0];
for (i = 0; i < lowpass_height * 2; i++) {
for (j = 0; j < lowpass_width * 2; j++)
output[j] <<= 2;
output[j] *= 4;
output += lowpass_width * 2;
}