vdso: check the value of vdso_enabled

PATCH New WANG Cong 1 participant 1 message Jul 18, 2008 x86

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WANG Cong

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2008-07-18 14:42 UTC #0 lore raw

PATCH 1/1 vdso: check the value of vdso_enabled

When the value of 'vdso_enabled' is out of range, make it default.

Signed-off-by WANG Cong <[email protected]>

Cc [email protected]

---

arch/x86/vdso/vdso32-setup.c +2 -0

index 0bce542..3428448 100644
@@ -59,6 +59,8 @@ unsigned int __read_mostly vdso_enabled = VDSO_DEFAULT;
 static int __init vdso_setup(char *s)
 {
 	vdso_enabled = simple_strtoul(s, NULL, 0);
+	if (vdso_enabled > VDSO_COMPAT)
+		vdso_enabled = VDSO_DEFAULT;
 
 	return 1;
 }