diff options
Diffstat (limited to 'libavformat/apngenc.c')
| -rw-r--r-- | libavformat/apngenc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/apngenc.c b/libavformat/apngenc.c index 88d4a41462..7443c77504 100644 --- a/libavformat/apngenc.c +++ b/libavformat/apngenc.c @@ -50,7 +50,7 @@ typedef struct APNGMuxContext { static uint8_t *apng_find_chunk(uint32_t tag, uint8_t *buf, size_t length) { size_t b; - for (b = 0; b < length; b += AV_RB32(buf + b) + 12) + for (b = 0; AV_RB32(buf + b) + 12ULL <= length - b; b += AV_RB32(buf + b) + 12ULL) if (AV_RB32(&buf[b + 4]) == tag) return &buf[b]; return NULL; |