drm/tegra: Zero-initialize iosys_map

UBSAN reports an invalid load for bool, as the iosys_map is read later without being initialized. Zero-initialize it to avoid this. Reported-by: Ashish Mhetre <[email protected]> Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
raymond-wx · Oct 11, 2023 · 3868ff0 · 3868ff0
1 parent e889a31
commit 3868ff0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
@@ -177,7 +177,7 @@ static void tegra_bo_unpin(struct host1x_bo_mapping *map)
 static void *tegra_bo_mmap(struct host1x_bo *bo)
 {
 	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
-	struct iosys_map map;
+	struct iosys_map map = { 0 };
 	int ret;
 
 	if (obj->vaddr)