ffmpeg/FFmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-09-19 21:06:42 +00:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/wavpack: Fix invalid shift

Browse Source 
Fixes: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 2377/clusterfuzz-testcase-minimized-6108505935183872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-27 13:47:32 +02:00
parent 7592d97f10
commit c07af72098
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/wavpack.c
View File

@ -846,9 +846,9 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
continue;
}
bytestream2_get_buffer(&gb, val, 4);
if (val[0] > 31) {
if (val[0] > 30) {
av_log(avctx, AV_LOG_ERROR,
"Invalid INT32INFO, extra_bits = %d (> 32)\n", val[0]);
"Invalid INT32INFO, extra_bits = %d (> 30)\n", val[0]);
continue;
} else if (val[0]) {
s->extra_bits = val[0];