diff options
Diffstat (limited to 'libavcodec/exr.c')
| -rw-r--r-- | libavcodec/exr.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libavcodec/exr.c b/libavcodec/exr.c index c25bae8cd4..91a567cd41 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -1951,9 +1951,12 @@ static int decode_header(EXRContext *s, AVFrame *frame) "preview", 16)) >= 0) { uint32_t pw = bytestream2_get_le32(gb); uint32_t ph = bytestream2_get_le32(gb); - int64_t psize = 4LL * pw * ph; + uint64_t psize = pw * ph; + if (psize > INT64_MAX / 4) + return AVERROR_INVALIDDATA; + psize *= 4; - if (psize >= bytestream2_get_bytes_left(gb)) + if ((int64_t)psize >= bytestream2_get_bytes_left(gb)) return AVERROR_INVALIDDATA; bytestream2_skip(gb, psize); |