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| author | WANG Cong <xiyou.wangcong@gmail.com> | 2015-07-30 17:12:21 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-31 15:22:34 -0700 |
| commit | 5175f7106cc55a1bcf97bf7d5ba0900017ebcef8 (patch) | |
| tree | 9f3ccc13ff8fb73a9a260d99ea2276f3f43bf09f /net | |
| parent | 8a68173691f036613e3d4e6bf8dc129d4a7bf383 (diff) | |
| download | linux-5175f7106cc55a1bcf97bf7d5ba0900017ebcef8.tar.gz linux-5175f7106cc55a1bcf97bf7d5ba0900017ebcef8.tar.bz2 linux-5175f7106cc55a1bcf97bf7d5ba0900017ebcef8.zip | |
act_pedit: check binding before calling tcf_hash_release()
When we share an action within a filter, the bind refcnt
should increase, therefore we should not call tcf_hash_release().
Fixes: 1a29321ed045 ("net_sched: act: Dont increment refcnt on replace")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sched/act_pedit.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index 17e6d6669c7f..ff8b466a73f6 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -68,13 +68,12 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla, } ret = ACT_P_CREATED; } else { - p = to_pedit(a); - tcf_hash_release(a, bind); if (bind) return 0; + tcf_hash_release(a, bind); if (!ovr) return -EEXIST; - + p = to_pedit(a); if (p->tcfp_nkeys && p->tcfp_nkeys != parm->nkeys) { keys = kmalloc(ksize, GFP_KERNEL); if (keys == NULL) |