[FFmpeg-cvslog] mov: reset dref_count on realloc to keep values consistent.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Apr 15 23:37:09 2012 +0200| [689e59b7ffed34eba6159dcc78e87133862e3746] | committer: Michael Niedermayer

mov: reset dref_count on realloc to keep values consistent.

This fixes a potential crash.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=689e59b7ffed34eba6159dcc78e87133862e3746
---

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

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 004c4c4..93f3691 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -401,6 +401,7 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     if (entries >= UINT_MAX / sizeof(*sc->drefs))
         return AVERROR_INVALIDDATA;
     av_free(sc->drefs);
+    sc->drefs_count = 0;
     sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
     if (!sc->drefs)
         return AVERROR(ENOMEM);