diff options
Diffstat (limited to 'mm/gup.c')
| -rw-r--r-- | mm/gup.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -449,7 +449,11 @@ static int check_vma_flags(struct vm_area_struct *vma, unsigned long gup_flags) if (!(vm_flags & VM_MAYREAD)) return -EFAULT; } - if (!arch_vma_access_permitted(vma, write, foreign)) + /* + * gups are always data accesses, not instruction + * fetches, so execute=false here + */ + if (!arch_vma_access_permitted(vma, write, false, foreign)) return -EFAULT; return 0; } @@ -629,8 +633,11 @@ bool vma_permits_fault(struct vm_area_struct *vma, unsigned int fault_flags) /* * The architecture might have a hardware protection * mechanism other than read/write that can deny access. + * + * gup always represents data access, not instruction + * fetches, so execute=false here: */ - if (!arch_vma_access_permitted(vma, write, foreign)) + if (!arch_vma_access_permitted(vma, write, false, foreign)) return false; return true; |