diff --git a/lnet/ChangeLog b/lnet/ChangeLog
index 5906642cf792bb5d5a2defe6807796de1775ee33..1e8a65c25379d9f4c19e5516d0500cd95999f7e1 100644
--- a/lnet/ChangeLog
+++ b/lnet/ChangeLog
@@ -27,6 +27,10 @@
 	ptllnd    - Portals 3.3 / UNICOS/lc 1.5.x, 2.0.x
        * bug fixes
 
+Severity   : minor
+Bugzilla   : 13288
+Description: Initialize cpumask before use
+
 Severity   : major
 Bugzilla   : 12014
 Description: ASSERTION failures when upgrading to the patchless zero-copy
diff --git a/lnet/klnds/socklnd/socklnd_cb.c b/lnet/klnds/socklnd/socklnd_cb.c
index 71d08ae9a7de59204cbf909a5bf5dfefbf74c278..41cb248dc409196c0a3dabe2e1af96ce245c8598 100644
--- a/lnet/klnds/socklnd/socklnd_cb.c
+++ b/lnet/klnds/socklnd/socklnd_cb.c
@@ -1527,7 +1527,7 @@ int ksocknal_scheduler (void *arg)
 #if defined(CONFIG_SMP) && defined(CPU_AFFINITY)
         id = ksocknal_sched2cpu(id);
         if (cpu_online(id)) {
-                cpumask_t m;
+                cpumask_t m = CPU_MASK_NONE;
                 cpu_set(id, m);
                 set_cpus_allowed(current, m);
         } else {