mbox series

[net,0/2] net_sched: fix a UAF in tcf_action_init()

Message ID 20200923035624.7307-1-xiyou.wangcong@gmail.com
Headers show
Series net_sched: fix a UAF in tcf_action_init() | expand

Message

Cong Wang Sept. 23, 2020, 3:56 a.m. UTC 
This patchset fixes a use-after-free triggered by syzbot. Please
find more details in each patch description.

---

Cong Wang (2):
  net_sched: defer tcf_idr_insert() in tcf_action_init_1()
  net_sched: commit action insertions together

 include/net/act_api.h      |  2 --
 net/sched/act_api.c        | 52 +++++++++++++++++++++++++-------------
 net/sched/act_bpf.c        |  4 +--
 net/sched/act_connmark.c   |  1 -
 net/sched/act_csum.c       |  3 ---
 net/sched/act_ct.c         |  2 --
 net/sched/act_ctinfo.c     |  3 ---
 net/sched/act_gact.c       |  2 --
 net/sched/act_gate.c       |  3 ---
 net/sched/act_ife.c        |  3 ---
 net/sched/act_ipt.c        |  2 --
 net/sched/act_mirred.c     |  2 --
 net/sched/act_mpls.c       |  2 --
 net/sched/act_nat.c        |  3 ---
 net/sched/act_pedit.c      |  2 --
 net/sched/act_police.c     |  2 --
 net/sched/act_sample.c     |  2 --
 net/sched/act_simple.c     |  2 --
 net/sched/act_skbedit.c    |  2 --
 net/sched/act_skbmod.c     |  2 --
 net/sched/act_tunnel_key.c |  3 ---
 net/sched/act_vlan.c       |  2 --
 22 files changed, 35 insertions(+), 66 deletions(-)

Comments

David Miller Sept. 25, 2020, 2:47 a.m. UTC | #1 
From: Cong Wang <xiyou.wangcong@gmail.com>
Date: Tue, 22 Sep 2020 20:56:22 -0700

> This patchset fixes a use-after-free triggered by syzbot. Please
> find more details in each patch description.

Series applied and queued up for -stable, thanks Cong.