taskstats: check nla_reserve() return
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=44621 Reported-by: <rucsoftsec@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -436,6 +436,11 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
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na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
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na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
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sizeof(struct cgroupstats));
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sizeof(struct cgroupstats));
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if (na == NULL) {
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rc = -EMSGSIZE;
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goto err;
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}
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stats = nla_data(na);
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stats = nla_data(na);
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memset(stats, 0, sizeof(*stats));
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memset(stats, 0, sizeof(*stats));
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