lguest: beyond ARRAY_SIZE of cpu->arch.gdt

Do not go beyond ARRAY_SIZE of cpu->arch.gdt Signed-off-by: Roel Kluin <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
Baughn · Jun 12, 2009 · 81b79b0 · 81b79b0
1 parent 2644f17
commit 81b79b0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/lguest/segments.c b/drivers/lguest/segments.c
@@ -150,7 +150,7 @@ void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi)
 {
 	/* We assume the Guest has the same number of GDT entries as the
 	 * Host, otherwise we'd have to dynamically allocate the Guest GDT. */
-	if (num > ARRAY_SIZE(cpu->arch.gdt))
+	if (num >= ARRAY_SIZE(cpu->arch.gdt))
 		kill_guest(cpu, "too many gdt entries %i", num);
 
 	/* Set it up, then fix it. */