anv: zero-out anv_batch_bo

anv_batch_bo has a length field that we use to flush cachelines. Not
having that field initialized properly leads us to access out of bound
memory.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15425>

diff --git a/src/intel/vulkan/anv_batch_chain.c b/src/intel/vulkan/anv_batch_chain.c
index 8737b67..3b1bdfc 100644 (file)
--- a/src/intel/vulkan/anv_batch_chain.c
+++ b/src/intel/vulkan/anv_batch_chain.c
@@ -349,7 +349,7 @@ anv_batch_bo_create(struct anv_cmd_buffer *cmd_buffer,
 {
    VkResult result;
 
-   struct anv_batch_bo *bbo = vk_alloc(&cmd_buffer->vk.pool->alloc, sizeof(*bbo),
+   struct anv_batch_bo *bbo = vk_zalloc(&cmd_buffer->vk.pool->alloc, sizeof(*bbo),
                                         8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
    if (bbo == NULL)
       return vk_error(cmd_buffer, VK_ERROR_OUT_OF_HOST_MEMORY);