diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 3767211b3d0f..ab3546c5ac3a 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -283,7 +283,13 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, /* protection fault */ if (error_code & DSISR_PROTFAULT) goto bad_area; - if (!(vma->vm_flags & VM_EXEC)) + /* + * Allow execution from readable areas if the MMU does not + * provide separate controls over reading and executing. + */ + if (!(vma->vm_flags & VM_EXEC) && + (cpu_has_feature(CPU_FTR_NOEXECUTE) || + !(vma->vm_flags & (VM_READ | VM_WRITE)))) goto bad_area; #else pte_t *ptep;