diff options
| -rw-r--r-- | mm/mempolicy.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index bec88c81244..72f402cc9c9 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -161,6 +161,10 @@ static struct mempolicy *mpol_new(int mode, nodemask_t *nodes) switch (mode) { case MPOL_INTERLEAVE: policy->v.nodes = *nodes; + if (nodes_weight(*nodes) == 0) { + kmem_cache_free(policy_cache, policy); + return ERR_PTR(-EINVAL); + } break; case MPOL_PREFERRED: policy->v.preferred_node = first_node(*nodes); |