Am Fr., 13. Sept. 2019 um 18:34 Uhr schrieb vectronic
<[email protected]>:
>
> prevent attempt to call xmlFree if val was not allocated
>
> fixes: 8135
> Signed-off-by: vectronic <[email protected]>
> ---
> libavformat/dashdec.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
> index 4f725ba09a..8022ba9afe 100644
> --- a/libavformat/dashdec.c
> +++ b/libavformat/dashdec.c
> @@ -1185,6 +1185,7 @@ static int parse_programinformation(AVFormatContext *s,
> xmlNodePtr node)
>
> node = xmlFirstElementChild(node);
> while (node) {
> + val = NULL;
> if (!av_strcasecmp(node->name, "Title")) {
> val = xmlNodeGetContent(node);
> if (val) {
This part of the patch is sufficient afaict.
> @@ -1202,7 +1203,9 @@ static int parse_programinformation(AVFormatContext *s,
> xmlNodePtr node)
> }
> }
> node = xmlNextElementSibling(node);
> - xmlFree(val);
> + if (val) {
> + xmlFree(val);
> + }
This - fortunately - seems unneeded.
Carl Eugen
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