X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=lib%2Ftest_lockup.c;h=c3fd87d6c2dd0eafb5a4650da0cf35e7cce5c375;hb=refs%2Fheads%2Faccepted%2Ftizen_8.0_unified;hp=906b598740a7b87b45368c6453f7f8a319d25ea3;hpb=27151f177827d478508e756c7657273261aaf8a9;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/lib/test_lockup.c b/lib/test_lockup.c
index 906b598..c3fd87d 100644
--- a/lib/test_lockup.c
+++ b/lib/test_lockup.c
@@ -417,9 +417,14 @@ static bool test_kernel_ptr(unsigned long addr, int size)
 		return false;
 
 	/* should be at least readable kernel address */
-	if (access_ok(ptr, 1) ||
-	    access_ok(ptr + size - 1, 1) ||
-	    get_kernel_nofault(buf, ptr) ||
+	if (!IS_ENABLED(CONFIG_ALTERNATE_USER_ADDRESS_SPACE) &&
+	    (access_ok((void __user *)ptr, 1) ||
+	     access_ok((void __user *)ptr + size - 1, 1))) {
+		pr_err("user space ptr invalid in kernel: %#lx\n", addr);
+		return true;
+	}
+
+	if (get_kernel_nofault(buf, ptr) ||
 	    get_kernel_nofault(buf, ptr + size - 1)) {
 		pr_err("invalid kernel ptr: %#lx\n", addr);
 		return true;