fre 2021-03-12 klockan 14:07 +0100 skrev Andreas Rheinhardt:
> It was introduced in d3d9b1fc8e2dfc8b4d66c9916ab7221062ff4660;
> Fixes Coverity issue #733800.
>
> Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com>
> ---
> I have no testcase for this; but hopefully Michael can test it with the
> testcase that led to d3d9b1fc8e2dfc8b4d66c9916ab7221062ff4660 in the
> first place?
> (And I always thought fuzzing samples were small. How does it come that
> it is close to INT64_MAX?)
>
> libavformat/mxfdec.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
> index d7213bda30..2e9d7d713a 100644
> --- a/libavformat/mxfdec.c
> +++ b/libavformat/mxfdec.c
> @@ -2909,8 +2909,11 @@ static int mxf_read_local_tags(MXFContext *mxf,
> KLVPacket *klv, MXFMetadataReadF
> int size = avio_rb16(pb); /* KLV specified by 0x53 */
> int64_t next = avio_tell(pb);
> UID uid = {0};
> - if (next < 0 || next > INT64_MAX - size)
> + if (next < 0 || next > INT64_MAX - size) {
> + if (meta)
> + mxf_free_metadataset(&meta, 1);
{} here too of course. Looks good otherwise
/Tomas
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