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avcodec/pictordec: runtime error: left shift of 15 by 28 places cannot be represented in type 'int'

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Fixes: 898/clusterfuzz-testcase-6149765467209728

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-03-21 02:20:35 +01:00
parent 3182e19c1c
commit 0f34c0789f
1 changed files with 1 additions and 1 deletions
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2
libavcodec/pictordec.c
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@ -62,7 +62,7 @@ static void picmemset(PicContext *s, AVFrame *frame, unsigned value, int run,
{ {
uint8_t *d; uint8_t *d;
int shift = *plane * bits_per_plane; int shift = *plane * bits_per_plane;
unsigned mask = ((1 << bits_per_plane) - 1) << shift; unsigned mask = ((1U << bits_per_plane) - 1) << shift;
value <<= shift; value <<= shift;
while (run > 0) { while (run > 0) {