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[FFmpeg-devel,11/13] avformat/spdifdec: Use 64bit to compute bit rate

Message ID 20220918171410.31835-11-michael@niedermayer.cc
State Accepted
Commit 4075f0cec1830a7ac081b1a23bd3f5c4e266fe26
Headers show
Series [FFmpeg-devel,01/13] avformat/flvdec: Use 64bit for sum_flv_tag_size | expand

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Commit Message

Michael Niedermayer Sept. 18, 2022, 5:14 p.m. UTC 
Fixes: signed integer overflow: 32 * 553590816 cannot be represented in type 'int'
Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_WAV_fuzzer-6564974517944320

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/spdifdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/libavformat/spdifdec.c b/libavformat/spdifdec.c
index 2af75ca9dbd..672133581a8 100644
--- a/libavformat/spdifdec.c
+++ b/libavformat/spdifdec.c
@@ -226,7 +226,7 @@  int ff_spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
     if (!s->bit_rate && s->streams[0]->codecpar->sample_rate)
         /* stream bitrate matches 16-bit stereo PCM bitrate for currently
            supported codecs */
-        s->bit_rate = 2 * 16 * s->streams[0]->codecpar->sample_rate;
+        s->bit_rate = 2 * 16LL * s->streams[0]->codecpar->sample_rate;
 
     return 0;
 }