author: Anshuman Khandual <anshuman.khandual@arm.com> 2020-04-10 14:33:09 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2020-04-10 15:36:21 -0700
commit: 6cb4d9a2870d2062e34c93bfef4d52fca3fe42d1
parent: c62da0c35d58518ddb26ff641d2485596567fd96
Commit Summary:
Diffstat:
1 file changed, 2 insertions, 2 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 1d823b050329..494192ca954b 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -419,7 +419,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
*/
if (arch_has_pfn_modify_check() &&
(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) &&
- (newflags & (VM_READ|VM_WRITE|VM_EXEC)) == 0) {
+ (newflags & VM_ACCESS_FLAGS) == 0) {
pgprot_t new_pgprot = vm_get_page_prot(newflags);
error = walk_page_range(current->mm, start, end,
@@ -598,7 +598,7 @@ static int do_mprotect_pkey(unsigned long start, size_t len,
newflags |= (vma->vm_flags & ~mask_off_old_flags);
/* newflags >> 4 shift VM_MAY% in place of VM_% */
- if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
+ if ((newflags & ~(newflags >> 4)) & VM_ACCESS_FLAGS) {
error = -EACCES;
goto out;
}