diff options
| -rw-r--r-- | libavformat/avidec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavformat/avidec.c b/libavformat/avidec.c index 90480dd9d6..1971ea0fe8 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -1753,7 +1753,10 @@ static int avi_load_index(AVFormatContext *s) size = avio_rl32(pb); if (avio_feof(pb)) break; - next = avio_tell(pb) + size + (size & 1); + next = avio_tell(pb); + if (next < 0 || next > INT64_MAX - size - (size & 1)) + break; + next += size + (size & 1LL); if (tag == MKTAG('i', 'd', 'x', '1') && avi_read_idx1(s, size) >= 0) { |