Module: libav
Branch: master
Commit: f1c3d4a68a743c1b274dc764e54e2df276a7c774

Author:    Justin Ruggles <[email protected]>
Committer: Justin Ruggles <[email protected]>
Date:      Sat Feb  4 17:08:34 2012 -0500

ape: skip packets with invalid size

---

 libavformat/ape.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/libavformat/ape.c b/libavformat/ape.c
index 8145db3..4d13e48 100644
--- a/libavformat/ape.c
+++ b/libavformat/ape.c
@@ -379,6 +379,14 @@ static int ape_read_packet(AVFormatContext * s, AVPacket * 
pkt)
     else
         nblocks = ape->blocksperframe;
 
+    if (ape->frames[ape->currentframe].size <= 0 ||
+        ape->frames[ape->currentframe].size > INT_MAX - extra_size) {
+        av_log(s, AV_LOG_ERROR, "invalid packet size: %d\n",
+               ape->frames[ape->currentframe].size);
+        ape->currentframe++;
+        return AVERROR(EIO);
+    }
+
     if (av_new_packet(pkt,  ape->frames[ape->currentframe].size + extra_size) 
< 0)
         return AVERROR(ENOMEM);
 

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