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[FFmpeg-devel,5/7] ircamdec: prevent overflow during block alignment calculation

Message ID 01be60b1-7167-6f2b-4fc8-65274d0951fd@googlemail.com
State Superseded
Headers show

Commit Message

Andreas Cadhalpun Dec. 16, 2016, 2:34 a.m. UTC 
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
---
 libavformat/ircamdec.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/libavformat/ircamdec.c b/libavformat/ircamdec.c
index 59f3a49..3f92b6c 100644
--- a/libavformat/ircamdec.c
+++ b/libavformat/ircamdec.c
@@ -96,6 +96,7 @@  static int ircam_read_header(AVFormatContext *s)
     }
 
     st->codecpar->bits_per_coded_sample = av_get_bits_per_sample(st->codecpar->codec_id);
+    FF_BAIL_ON_OVERFLOW(s, st->codecpar->channels && st->codecpar->bits_per_coded_sample > INT_MAX / st->codecpar->channels)
     st->codecpar->block_align = st->codecpar->bits_per_coded_sample * st->codecpar->channels / 8;
     avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
     avio_skip(s->pb, 1008);