From 145cb3e349d080dce3d6e8f41722dffe33ab7b9f Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Tue, 8 Nov 2022 15:26:03 +0100
Subject: [PATCH] vulkan/wsi/wayland: fix unaligned load of dev_t

Fixes the following UBSan error:

    ../src/vulkan/wsi/wsi_common_wayland.c:654:27: runtime error: load of misaligned address 0x6110000666b4 for type 'dev_t' (aka 'unsigned long'), which requires 8 byte alignment

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19595>
---
 src/vulkan/wsi/wsi_common_wayland.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/vulkan/wsi/wsi_common_wayland.c b/src/vulkan/wsi/wsi_common_wayland.c
index 405d917441d..e4de881bf40 100644
--- a/src/vulkan/wsi/wsi_common_wayland.c
+++ b/src/vulkan/wsi/wsi_common_wayland.c
@@ -647,8 +647,7 @@ default_dmabuf_feedback_main_device(void *data,
    struct wsi_wl_display *display = data;
 
    assert(device->size == sizeof(dev_t));
-   dev_t *dev = device->data;
-   display->main_device = *dev;
+   memcpy(&display->main_device, device->data, device->size);
 }
 
 static void