taskstats: check nla_reserve() return

[cascardo/linux.git] / kernel / taskstats.c

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index e660464..d0a3279 100644 (file)
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -436,6 +436,11 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
 
        na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
                                sizeof(struct cgroupstats));
+       if (na == NULL) {
+               rc = -EMSGSIZE;
+               goto err;
+       }
+
        stats = nla_data(na);
        memset(stats, 0, sizeof(*stats));