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Fix potential crash with sys_move_pages
[sfrench/cifs-2.6.git]
/
mm
/
migrate.c
diff --git
a/mm/migrate.c
b/mm/migrate.c
index efddbf0926b283ae5ef292e076ff9900842c4dd5..9a0db5bbabe4c93c0fce3ee7c24f13f2fbf84dc0 100644
(file)
--- a/
mm/migrate.c
+++ b/
mm/migrate.c
@@
-912,6
+912,9
@@
static int do_pages_move(struct mm_struct *mm, struct task_struct *task,
goto out_pm;
err = -ENODEV;
+ if (node < 0 || node >= MAX_NUMNODES)
+ goto out_pm;
+
if (!node_state(node, N_HIGH_MEMORY))
goto out_pm;