X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=security%2Ftomoyo%2Ffile.c;h=1e6077568fdeccddcc3a7242d325f0827aa537ee;hb=5797e861e402fff2bedce4ec8b7c89f4248b6073;hp=051f7297877cb963887d88118817779b9464d1ef;hpb=50d228345a03c882dfe11928ab41b42458b3f922;p=linux-2.6-microblaze.git

diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 051f7297877c..1e6077568fde 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -362,14 +362,14 @@ static bool tomoyo_merge_path_acl(struct tomoyo_acl_info *a,
 {
 	u16 * const a_perm = &container_of(a, struct tomoyo_path_acl, head)
 		->perm;
-	u16 perm = *a_perm;
+	u16 perm = READ_ONCE(*a_perm);
 	const u16 b_perm = container_of(b, struct tomoyo_path_acl, head)->perm;
 
 	if (is_delete)
 		perm &= ~b_perm;
 	else
 		perm |= b_perm;
-	*a_perm = perm;
+	WRITE_ONCE(*a_perm, perm);
 	return !perm;
 }
 
@@ -437,7 +437,7 @@ static bool tomoyo_merge_mkdev_acl(struct tomoyo_acl_info *a,
 {
 	u8 *const a_perm = &container_of(a, struct tomoyo_mkdev_acl,
 					 head)->perm;
-	u8 perm = *a_perm;
+	u8 perm = READ_ONCE(*a_perm);
 	const u8 b_perm = container_of(b, struct tomoyo_mkdev_acl, head)
 		->perm;
 
@@ -445,7 +445,7 @@ static bool tomoyo_merge_mkdev_acl(struct tomoyo_acl_info *a,
 		perm &= ~b_perm;
 	else
 		perm |= b_perm;
-	*a_perm = perm;
+	WRITE_ONCE(*a_perm, perm);
 	return !perm;
 }
 
@@ -517,14 +517,14 @@ static bool tomoyo_merge_path2_acl(struct tomoyo_acl_info *a,
 {
 	u8 * const a_perm = &container_of(a, struct tomoyo_path2_acl, head)
 		->perm;
-	u8 perm = *a_perm;
+	u8 perm = READ_ONCE(*a_perm);
 	const u8 b_perm = container_of(b, struct tomoyo_path2_acl, head)->perm;
 
 	if (is_delete)
 		perm &= ~b_perm;
 	else
 		perm |= b_perm;
-	*a_perm = perm;
+	WRITE_ONCE(*a_perm, perm);
 	return !perm;
 }
 
@@ -655,7 +655,7 @@ static bool tomoyo_merge_path_number_acl(struct tomoyo_acl_info *a,
 {
 	u8 * const a_perm = &container_of(a, struct tomoyo_path_number_acl,
 					  head)->perm;
-	u8 perm = *a_perm;
+	u8 perm = READ_ONCE(*a_perm);
 	const u8 b_perm = container_of(b, struct tomoyo_path_number_acl, head)
 		->perm;
 
@@ -663,7 +663,7 @@ static bool tomoyo_merge_path_number_acl(struct tomoyo_acl_info *a,
 		perm &= ~b_perm;
 	else
 		perm |= b_perm;
-	*a_perm = perm;
+	WRITE_ONCE(*a_perm, perm);
 	return !perm;
 }