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new a7d42bfba8 avformat/mov: Limit maximum box size for mov_read_lhvc()
a7d42bfba8 is described below
commit a7d42bfba8bbdfd028f930ca24fc7afc8150bef4
Author: Dale Curtis <[email protected]>
AuthorDate: Wed Apr 22 20:19:02 2026 +0000
Commit: James Almer <[email protected]>
CommitDate: Thu Apr 30 22:50:51 2026 +0000
avformat/mov: Limit maximum box size for mov_read_lhvc()
Signed-off-by: Dale Curtis <[email protected]>
---
libavformat/mov.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 12fb00be59..ff687fb18c 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -8683,8 +8683,10 @@ static int mov_read_lhvc(MOVContext *c, AVIOContext *pb,
MOVAtom atom)
// TODO: handle lhvC when present before hvcC
return 0;
- if (atom.size < 6 || st->codecpar->extradata_size < 23)
+ if (atom.size < 6 || st->codecpar->extradata_size < 23 ||
+ atom.size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
return AVERROR_INVALIDDATA;
+ }
buf = av_malloc(atom.size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!buf)
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