kernel hardening fix for v5.19-rc1

- Avoid GCC plugins needing utsrelease.h build target (Masahiro Yamada)
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Merge tag 'hardening-v5.19-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull kernel hardening fix from Kees Cook:
 "This fixes an unlucky build race condition when using the GCC plugins,
  noticed by a few folks.

   - Avoid GCC plugins needing utsrelease.h build target (Masahiro Yamada)"

* tag 'hardening-v5.19-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: use KERNELVERSION for plugin version

scripts/gcc-plugins/Makefile

@@ -28,7 +28,7 @@ GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
 
 plugin_cxxflags	= -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
 		  -include $(srctree)/include/linux/compiler-version.h \
-		  -include $(objtree)/include/generated/utsrelease.h \
+		  -DPLUGIN_VERSION=$(call stringify,$(KERNELVERSION)) \
 		  -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \
 		  -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
 		  -ggdb -Wno-narrowing -Wno-unused-variable \

scripts/gcc-plugins/latent_entropy_plugin.c

@@ -82,7 +82,7 @@ __visible int plugin_is_GPL_compatible;
 static GTY(()) tree latent_entropy_decl;
 
 static struct plugin_info latent_entropy_plugin_info = {
-	.version	= UTS_RELEASE,
+	.version	= PLUGIN_VERSION,
 	.help		= "disable\tturn off latent entropy instrumentation\n",
 };
 

scripts/gcc-plugins/randomize_layout_plugin.c

@@ -34,7 +34,7 @@ __visible int plugin_is_GPL_compatible;
 static int performance_mode;
 
 static struct plugin_info randomize_layout_plugin_info = {
-	.version	= UTS_RELEASE,
+	.version	= PLUGIN_VERSION,
 	.help		= "disable\t\t\tdo not activate plugin\n"
 			  "performance-mode\tenable cacheline-aware layout randomization\n"
 };

scripts/gcc-plugins/sancov_plugin.c

@@ -26,7 +26,7 @@ __visible int plugin_is_GPL_compatible;
 tree sancov_fndecl;
 
 static struct plugin_info sancov_plugin_info = {
-	.version	= UTS_RELEASE,
+	.version	= PLUGIN_VERSION,
 	.help		= "sancov plugin\n",
 };
 

scripts/gcc-plugins/stackleak_plugin.c

@@ -44,7 +44,7 @@ static bool verbose = false;
 static GTY(()) tree track_function_decl;
 
 static struct plugin_info stackleak_plugin_info = {
-	.version = UTS_RELEASE,
+	.version = PLUGIN_VERSION,
 	.help = "track-min-size=nn\ttrack stack for functions with a stack frame size >= nn bytes\n"
 		"arch=target_arch\tspecify target build arch\n"
 		"disable\t\tdo not activate the plugin\n"

scripts/gcc-plugins/structleak_plugin.c

@@ -37,7 +37,7 @@
 __visible int plugin_is_GPL_compatible;
 
 static struct plugin_info structleak_plugin_info = {
-	.version	= UTS_RELEASE,
+	.version	= PLUGIN_VERSION,
 	.help		= "disable\tdo not activate plugin\n"
 			  "byref\tinit structs passed by reference\n"
 			  "byref-all\tinit anything passed by reference\n"