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new a58cb16e27 Fix overflow in STSD parser
a58cb16e27 is described below
commit a58cb16e27bc0c32906cfb3de36e4a495c0a8602
Author: Ted Meyer <[email protected]>
AuthorDate: Tue Feb 3 16:31:50 2026 -0800
Commit: michaelni <[email protected]>
CommitDate: Mon Feb 9 02:38:16 2026 +0000
Fix overflow in STSD parser
Reset `sc->stsd_count` before parsing entries. This number doesn't get
reset, which means that multiple parse passes can increment it past the
`sc->extradata` array end and cause OOB writes.
---
libavformat/mov.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index d19b213ffa..1a4450153f 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3258,6 +3258,7 @@ fail:
av_freep(&sc->extradata[j]);
}
+ sc->stsd_count = 0;
av_freep(&sc->extradata);
av_freep(&sc->extradata_size);
return ret;
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