virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-17 20:17:55 +02:00
Code Issues Releases Activity

avcodec/flacdec: avoid undefined shift

Browse Source 
Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 4688/clusterfuzz-testcase-minimized-6572210748653568

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 560daf88913b0de59a4d845bcd19254b406388dd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-12-26 23:24:43 +01:00
parent 0e7d8ce37c
commit fb9560b366
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/flacdec.c
View File

@ -456,7 +456,7 @@ static inline int decode_subframe(FLACContext *s, int channel)
return AVERROR_INVALIDDATA;
}
if (wasted) {
if (wasted && wasted < 32) {
int i;
for (i = 0; i < s->blocksize; i++)
decoded[i] = (unsigned)decoded[i] << wasted;