virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

avcodec/takdec: Fix overflow with large sample rates

Browse Source 
Fixes: signed integer overflow: 2147483647 + 511 cannot be represented in type 'int'
Fixes: 17899/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5719753322135552

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 42eb78059d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-10-05 19:52:53 +02:00
parent dfb5dc4073
commit e804321367
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/takdec.c
View File

@ -176,8 +176,8 @@ static void set_sample_rate_params(AVCodecContext *avctx)
} else {
shift = 0;
}
s->uval = FFALIGN(avctx->sample_rate + 511 >> 9, 4) << shift;
s->subframe_scale = FFALIGN(avctx->sample_rate + 511 >> 9, 4) << 1;
s->uval = FFALIGN(avctx->sample_rate + 511LL >> 9, 4) << shift;
s->subframe_scale = FFALIGN(avctx->sample_rate + 511LL >> 9, 4) << 1;
}
static av_cold int tak_decode_init(AVCodecContext *avctx)