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path: root/drivers/misc/lkdtm
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Diffstat (limited to 'drivers/misc/lkdtm')
-rw-r--r--drivers/misc/lkdtm/cfi.c2
-rw-r--r--drivers/misc/lkdtm/fortify.c6
-rw-r--r--drivers/misc/lkdtm/perms.c5
3 files changed, 12 insertions, 1 deletions
diff --git a/drivers/misc/lkdtm/cfi.c b/drivers/misc/lkdtm/cfi.c
index 6a33889d0902..c3971f7caa65 100644
--- a/drivers/misc/lkdtm/cfi.c
+++ b/drivers/misc/lkdtm/cfi.c
@@ -43,7 +43,7 @@ static void lkdtm_CFI_FORWARD_PROTO(void)
lkdtm_indirect_call((void *)lkdtm_increment_int);
pr_err("FAIL: survived mismatched prototype function call!\n");
- pr_expected_config(CONFIG_CFI_CLANG);
+ pr_expected_config(CONFIG_CFI);
}
/*
diff --git a/drivers/misc/lkdtm/fortify.c b/drivers/misc/lkdtm/fortify.c
index 015927665678..00ed2147113e 100644
--- a/drivers/misc/lkdtm/fortify.c
+++ b/drivers/misc/lkdtm/fortify.c
@@ -44,6 +44,9 @@ static void lkdtm_FORTIFY_STR_MEMBER(void)
char *src;
src = kmalloc(size, GFP_KERNEL);
+ if (!src)
+ return;
+
strscpy(src, "over ten bytes", size);
size = strlen(src) + 1;
@@ -109,6 +112,9 @@ static void lkdtm_FORTIFY_MEM_MEMBER(void)
char *src;
src = kmalloc(size, GFP_KERNEL);
+ if (!src)
+ return;
+
strscpy(src, "over ten bytes", size);
size = strlen(src) + 1;
diff --git a/drivers/misc/lkdtm/perms.c b/drivers/misc/lkdtm/perms.c
index 6c24426104ba..e1f5e9abb301 100644
--- a/drivers/misc/lkdtm/perms.c
+++ b/drivers/misc/lkdtm/perms.c
@@ -9,6 +9,7 @@
#include <linux/vmalloc.h>
#include <linux/mman.h>
#include <linux/uaccess.h>
+#include <linux/objtool.h>
#include <asm/cacheflush.h>
#include <asm/sections.h>
@@ -86,6 +87,10 @@ static noinline __nocfi void execute_location(void *dst, bool write)
func();
pr_err("FAIL: func returned\n");
}
+/*
+ * Explicitly doing the wrong thing for testing.
+ */
+ANNOTATE_NOCFI_SYM(execute_location);
static void execute_user_location(void *dst)
{