Message ID | 20210201223116.11378-3-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 0f441b9063281d8ef5d4c30b10379d08aad8924f |
Headers | show |
Series | [FFmpeg-devel,1/8] avcodec/cbs_sei_syntax_template: Check for non negativity before setting size_t bits_left | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
andriy/PPC64_make | success | Make finished |
andriy/PPC64_make_fate | success | Make fate finished |
On Mon, Feb 01, 2021 at 11:31:11PM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: 1172577312 * 2 cannot be represented in type 'int' > Fixes: 29924/clusterfuzz-testcase-minimized-ffmpeg_dem_BOA_fuzzer-4882912874594304 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/utils.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index a1ae9cab18..8be4c4949c 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1786,7 +1786,7 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, case AV_CODEC_ID_ADPCM_IMA_RAD: return blocks * ((ba - 4 * ch) * 2 / ch); case AV_CODEC_ID_ADPCM_MS: - return blocks * (2 + (ba - 7 * ch) * 2 / ch); + return blocks * (2 + (ba - 7 * ch) * 2LL / ch); case AV_CODEC_ID_ADPCM_MTAF: return blocks * (ba - 16) * 2 / ch; }
Fixes: signed integer overflow: 1172577312 * 2 cannot be represented in type 'int' Fixes: 29924/clusterfuzz-testcase-minimized-ffmpeg_dem_BOA_fuzzer-4882912874594304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)