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| author | John Fastabend <john.fastabend@gmail.com> | 2014-09-16 08:31:17 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-16 21:59:36 +0200 |
| commit | d14cbfc88ff87e5054d67fde3ba5f4c20b773dab (patch) | |
| tree | 72c4820cc0543722601b597725c69892dba3dcda /net/sched | |
| parent | net: sched: cls_u32 add missing rcu_assign_pointer and annotation (diff) | |
| download | linux-d14cbfc88ff87e5054d67fde3ba5f4c20b773dab.tar.xz linux-d14cbfc88ff87e5054d67fde3ba5f4c20b773dab.zip | |
net: sched: cls_cgroup fix possible memory leak of 'new'
tree: git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master
head: 54996b529ab70ca1d6f40677cd2698c4f7127e87
commit: c7953ef23042b7c4fc2be5ecdd216aacff6df5eb [625/646] net: sched: cls_cgroup use RCU
net/sched/cls_cgroup.c:130 cls_cgroup_change() warn: possible memory leak of 'new'
net/sched/cls_cgroup.c:135 cls_cgroup_change() warn: possible memory leak of 'new'
net/sched/cls_cgroup.c:139 cls_cgroup_change() warn: possible memory leak of 'new'
Fixes: c7953ef23042b7c4fc2be5ecdd216aac ("net: sched: cls_cgroup use RCU")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/cls_cgroup.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index 3b7548759998..10c7ffde13e2 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -127,16 +127,18 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb, err = nla_parse_nested(tb, TCA_CGROUP_MAX, tca[TCA_OPTIONS], cgroup_policy); if (err < 0) - return err; + goto errout; tcf_exts_init(&e, TCA_CGROUP_ACT, TCA_CGROUP_POLICE); err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, ovr); if (err < 0) - return err; + goto errout; err = tcf_em_tree_validate(tp, tb[TCA_CGROUP_EMATCHES], &t); - if (err < 0) - return err; + if (err < 0) { + tcf_exts_destroy(tp, &e); + goto errout; + } tcf_exts_change(tp, &new->exts, &e); tcf_em_tree_change(tp, &new->ematches, &t); @@ -145,6 +147,9 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb, if (head) call_rcu(&head->rcu, cls_cgroup_destroy_rcu); return 0; +errout: + kfree(new); + return err; } static void cls_cgroup_destroy(struct tcf_proto *tp) |