[virglrenderer-devel] [PATCH] vrend: never destroy context 0 in vrend_renderer_context_destroy

[Li Qiang]

Ping.

2016-12-29 16:41 GMT+08:00 Li Qiang <liq3ea at gmail.com>:

> There will be a crash if the guest destroy context 0. As the context 0 is
> allocate in renderer init, not destroy in vrend_renderer_context_destroy.
> The context will be freed in renderer fini.
>
> Signed-off-by: Li Qiang <liq3ea at gmail.com>
> ---
>  src/vrend_decode.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/src/vrend_decode.c b/src/vrend_decode.c
> index 09f08ae..1bbcfda 100644
> --- a/src/vrend_decode.c
> +++ b/src/vrend_decode.c
> @@ -1089,6 +1089,10 @@ void vrend_renderer_context_destroy(uint32_t
> handle)
>     if (handle >= VREND_MAX_CTX)
>        return;
>
> +   /* never destroy context 0 */
> +   if (handle == 0)
> +      return;
> +
>     ctx = dec_ctx[handle];
>     if (!ctx)
>        return;
> --
> 2.7.4
>
>
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