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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>
This commit is contained in:
Alan Cox 2012-07-30 14:42:49 -07:00 committed by Linus Torvalds
parent fd4b616b0f
commit 25353b3377
1 changed files with 5 additions and 0 deletions
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5
kernel/taskstats.c
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@ -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));