aboutsummaryrefslogtreecommitdiffstats
path: root/net/sched/act_simple.c
diff options
context:
space:
mode:
authorHiroaki SHIMODA <shimoda.hiroaki@gmail.com>2012-08-06 05:45:48 +0000
committerDavid S. Miller <davem@davemloft.net>2012-08-06 13:30:01 -0700
commit47fd92f5a76eb3f5b407773766e7d7fa1a179419 (patch)
treefbebbe0628917989117a97ddf5737ceda816bccf /net/sched/act_simple.c
parentip: fix error handling in ip_finish_output2() (diff)
downloadlinux-dev-47fd92f5a76eb3f5b407773766e7d7fa1a179419.tar.xz
linux-dev-47fd92f5a76eb3f5b407773766e7d7fa1a179419.zip
net_sched: act: Delete estimator in error path.
Some action modules free struct tcf_common in their error path while estimator is still active. This results in est_timer() dereference freed memory. Add gen_kill_estimator() in ipt, pedit and simple action. Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_simple.c')
-rw-r--r--net/sched/act_simple.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 3922f2a2821b..3714f60f0b3c 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -131,7 +131,10 @@ static int tcf_simp_init(struct nlattr *nla, struct nlattr *est,
d = to_defact(pc);
ret = alloc_defdata(d, defdata);
if (ret < 0) {
- kfree(pc);
+ if (est)
+ gen_kill_estimator(&pc->tcfc_bstats,
+ &pc->tcfc_rate_est);
+ kfree_rcu(pc, tcfc_rcu);
return ret;
}
d->tcf_action = parm->action;