not sure this is possible
Fixes: CID1604446 Overflowed constant
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/webpenc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/webpenc.c b/libavformat/webpenc.c
index 1c5b93e0abf..ce0d046aa94 100644
--- a/libavformat/webpenc.c
+++ b/libavformat/webpenc.c
@@ -190,7 +190,7 @@ static int webp_write_trailer(AVFormatContext *s)
if (!ret) {
filesize = avio_tell(s->pb);
- if (avio_seek(s->pb, 4, SEEK_SET) == 4) {
+ if (filesize >= 8 && avio_seek(s->pb, 4, SEEK_SET) == 4) {
avio_wl32(s->pb, filesize - 8);
// Note: without the following, avio only writes 8 bytes to
the file.
avio_seek(s->pb, filesize, SEEK_SET);
--
2.45.2
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