[FFmpeg-devel] [PATCH 2/4] avcodec/pcm-dvdenc: 64bit pkt-size
Michael Niedermayer
michael at niedermayer.cc
Mon May 13 04:20:09 EEST 2024
It seems nothing prevents such overflow even though odd
Fixes: CID1441934 Unintentional integer overflow
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavcodec/pcm-dvdenc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/pcm-dvdenc.c b/libavcodec/pcm-dvdenc.c
index 1e7ee644f66..71e9b6915ad 100644
--- a/libavcodec/pcm-dvdenc.c
+++ b/libavcodec/pcm-dvdenc.c
@@ -116,7 +116,7 @@ static int pcm_dvd_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
{
PCMDVDContext *s = avctx->priv_data;
int samples = frame->nb_samples * avctx->ch_layout.nb_channels;
- int64_t pkt_size = (frame->nb_samples / s->samples_per_block) * s->block_size + 3;
+ int64_t pkt_size = (int64_t)(frame->nb_samples / s->samples_per_block) * s->block_size + 3;
int blocks = (pkt_size - 3) / s->block_size;
const int16_t *src16;
const int32_t *src32;
--
2.43.2
More information about the ffmpeg-devel
mailing list