diff options
Diffstat (limited to 'arch/arm/mm/fault.c')
| -rw-r--r-- | arch/arm/mm/fault.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index f07467533365..c3bd83450227 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -247,7 +247,9 @@ good_area: return handle_mm_fault(mm, vma, addr & PAGE_MASK, flags); check_stack: - if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr)) + /* Don't allow expansion below FIRST_USER_ADDRESS */ + if (vma->vm_flags & VM_GROWSDOWN && + addr >= FIRST_USER_ADDRESS && !expand_stack(vma, addr)) goto good_area; out: return fault; @@ -430,9 +432,6 @@ do_translation_fault(unsigned long addr, unsigned int fsr, index = pgd_index(addr); - /* - * FIXME: CP15 C1 is write only on ARMv3 architectures. - */ pgd = cpu_get_pgd() + index; pgd_k = init_mm.pgd + index; |