diff options
Diffstat (limited to 'mm/gup.c')
| -rw-r--r-- | mm/gup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/gup.c b/mm/gup.c index 76af4cfeaf681..541904a7c60fd 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -544,6 +544,9 @@ static int check_vma_flags(struct vm_area_struct *vma, unsigned long gup_flags) if (vm_flags & (VM_IO | VM_PFNMAP)) return -EFAULT; + if (gup_flags & FOLL_ANON && !vma_is_anonymous(vma)) + return -EFAULT; + if (write) { if (!(vm_flags & VM_WRITE)) { if (!(gup_flags & FOLL_FORCE)) |