---

yaml --- r: 62593 b: refs/heads/master c: 08ae6cc h: refs/heads/master i: 62591: 8e466cf v: v3
git-mirror · Jul 22, 2007 · 6dbf809 · 6dbf809
1 parent 3a62080
commit 6dbf809
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca8ffc974d43033be6e1d4277a45822d2c3656f4
+refs/heads/master: 08ae6cc15db201fa20cc4893d9500c1f6b20e560
diff --git a/trunk/arch/powerpc/mm/fault.c b/trunk/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;