[FFmpeg-devel] [PATCH 1/2] pmpdec: fix integer overflow

[Paul B Mahol]

On 2/24/13, Michael Niedermayer <michaelni at gmx.at> wrote:
> Its unlikely this affects any valid files.
>
> Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> ---
>  libavformat/pmpdec.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavformat/pmpdec.c b/libavformat/pmpdec.c
> index 06b2271..3b8c5f7 100644
> --- a/libavformat/pmpdec.c
> +++ b/libavformat/pmpdec.c
> @@ -93,7 +93,7 @@ static int pmp_header(AVFormatContext *s)
>      avio_skip(pb, 10);
>      srate = avio_rl32(pb);
>      channels = avio_rl32(pb) + 1;
> -    pos = avio_tell(pb) + 4*index_cnt;
> +    pos = avio_tell(pb) + 4LL*index_cnt;
>      for (i = 0; i < index_cnt; i++) {
>          uint32_t size = avio_rl32(pb);
>          int flags = size & 1 ? AVINDEX_KEYFRAME : 0;
> --
> 1.7.9.5
>
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>

lgtm