ffmpeg | branch: release/7.0 | Michael Niedermayer <mich...@niedermayer.cc> | Thu Apr 4 00:42:20 2024 +0200| [abaa747ee5db942b59f7106bb76e4806ae5cae84] | committer: Michael Niedermayer
avformat/pcm: Use 64bit in bitrate computation Fixes: signed integer overflow: 65792 * 65312 cannot be represented in type 'int' Fixes: 67819/clusterfuzz-testcase-minimized-ffmpeg_dem_WADY_fuzzer-5236100912185344 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit bf3b74142e4402912e26b5e58a0b63f87ec3cd21) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=abaa747ee5db942b59f7106bb76e4806ae5cae84 --- libavformat/pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/pcm.c b/libavformat/pcm.c index 051e86dd46..a774dbc372 100644 --- a/libavformat/pcm.c +++ b/libavformat/pcm.c @@ -41,7 +41,7 @@ int ff_pcm_default_packet_size(AVCodecParameters *par) /* Don't trust the codecpar bitrate if we can calculate it ourselves */ if (bits_per_sample > 0 && par->sample_rate > 0 && par->ch_layout.nb_channels > 0) if ((int64_t)par->sample_rate * par->ch_layout.nb_channels < INT64_MAX / bits_per_sample) - bitrate = bits_per_sample * par->sample_rate * par->ch_layout.nb_channels; + bitrate = bits_per_sample * (int64_t)par->sample_rate * par->ch_layout.nb_channels; if (bitrate > 0) { nb_samples = av_clip64(bitrate / 8 / PCM_DEMUX_TARGET_FPS / par->block_align, 1, max_samples); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
