And properly reset the entries count when resetting the entries.
CC: [email protected]
Bug-Id: 929
---
There is a similar problem for other blocks, if you are ok
I'd add some sc->${count} = 0 for all of them.
And probably some block parsers should also have a av_free().
libavformat/mov.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index a556aa7..9d271f8 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -473,9 +473,11 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb,
MOVAtom atom)
avio_rb32(pb); // version + flags
entries = avio_rb32(pb);
- if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
+ if (!entries ||
+ entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
entries >= UINT_MAX / sizeof(*sc->drefs))
return AVERROR_INVALIDDATA;
+ sc->drefs_count = 0;
av_free(sc->drefs);
sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
if (!sc->drefs)
--
2.6.1
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