1 files changed, 2 insertions, 0 deletions

diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 10027b42b7e2..cea4623f1ed6 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -218,6 +218,8 @@ posix_acl_permission(struct inode *inode, const struct posix_acl *acl, int want)
         const struct posix_acl_entry *pa, *pe, *mask_obj;
         int found = 0;
 
+        want &= MAY_READ | MAY_WRITE | MAY_EXEC | MAY_NOT_BLOCK;
+
         FOREACH_ACL_ENTRY(pa, acl, pe) {
                 switch(pa->e_tag) {
                         case ACL_USER_OBJ: