[FFmpeg-devel] [PATCH 3/3] avformat/mov: fix the entry count overflow check in the keys atom

[James Almer]

Signed-off-by: James Almer <jamrial at gmail.com>
---
 libavformat/mov.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index a935ef7326..9fca402896 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5025,7 +5025,7 @@ static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     avio_skip(pb, 4);
     count = avio_rb32(pb);
     atom.size -= 8;
-    if (count > UINT_MAX / sizeof(*c->meta_keys) - 1) {
+    if (count + 1LL > UINT_MAX / sizeof(*c->meta_keys)) {
         av_log(c->fc, AV_LOG_ERROR,
                "The 'keys' atom with the invalid key count: %"PRIu32"\n", count);
         return AVERROR_INVALIDDATA;
-- 
2.44.0