---
libavformat/asfdec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 45c86e1..72033ed 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -1591,8 +1591,10 @@ static int detect_unknown_subobject(AVFormatContext *s,
int64_t offset, int64_t
const GUIDParseTable *g = NULL;
ff_asf_guid guid;
int ret;
+ int64_t off;
- while (avio_tell(pb) <= offset + size) {
+ for (off = avio_tell(pb); off <= offset + size && off != asf->offset;
+ off = avio_tell(pb)) {
asf->offset = avio_tell(pb);
if ((ret = ff_get_guid(pb, &guid)) < 0)
return ret;
--
2.0.1
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