| Message ID | 20191217234721.4680-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Headers | show |
On Wed, Dec 18, 2019 at 12:47:21AM +0100, Michael Niedermayer wrote: > Fixes: left shift of 32 by 28 places cannot be represented in type 'int' > Fixes: 19472/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_LXF_fuzzer-5704364320096256 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/pcm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c index 4ce0b9487b..0c4b452b0e 100644 --- a/libavcodec/pcm.c +++ b/libavcodec/pcm.c @@ -515,7 +515,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data, dst_int32_t = (int32_t *)frame->extended_data[c]; for (i = 0; i < n; i++) { // extract low 20 bits and expand to 32 bits - *dst_int32_t++ = (src[2] << 28) | + *dst_int32_t++ = ((uint32_t)src[2]<<28) | (src[1] << 20) | (src[0] << 12) | ((src[2] & 0x0F) << 8) |
Fixes: left shift of 32 by 28 places cannot be represented in type 'int' Fixes: 19472/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PCM_LXF_fuzzer-5704364320096256 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)