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zink: validate pointer alignment in resource_from_user_memory

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Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25937>
This commit is contained in:
Karol Herbst 2023-10-25 23:07:30 +02:00
parent 5e3b7bef1e
commit 049af04341
1 changed files with 8 additions and 0 deletions
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8
src/gallium/drivers/zink/zink_resource.c
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@ -1871,6 +1871,14 @@ zink_resource_from_user_memory(struct pipe_screen *pscreen,
const struct pipe_resource *templ,
void *user_memory)
{
struct zink_screen *screen = zink_screen(pscreen);
VkDeviceSize alignMask = screen->info.ext_host_mem_props.minImportedHostPointerAlignment - 1;
/* Validate the user_memory pointer and fail early.
* minImportedHostPointerAlignment is required to be POT */
if (((uintptr_t)user_memory) & alignMask)
return NULL;
return resource_create(pscreen, templ, NULL, 0, NULL, 0, NULL, user_memory);
}