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-rw-r--r--mm/mmap.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index 12334aecf8ad..fa11d91242e8 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1640,7 +1640,7 @@ static void unmap_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
/*
* Get rid of page table information in the indicated region.
*
- * Called with the page table lock held.
+ * Called with the mm semaphore held.
*/
static void unmap_region(struct mm_struct *mm,
struct vm_area_struct *vma, struct vm_area_struct *prev,
@@ -1993,6 +1993,9 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
__vma = find_vma_prepare(mm,vma->vm_start,&prev,&rb_link,&rb_parent);
if (__vma && __vma->vm_start < vma->vm_end)
return -ENOMEM;
+ if ((vma->vm_flags & VM_ACCOUNT) &&
+ security_vm_enough_memory(vma_pages(vma)))
+ return -ENOMEM;
vma_link(mm, vma, prev, rb_link, rb_parent);
return 0;
}