[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <cover.1683326865.git.peilin.ye@bytedance.com>
Date: Fri, 5 May 2023 17:09:39 -0700
From: Peilin Ye <yepeilin.cs@...il.com>
To: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Jamal Hadi Salim <jhs@...atatu.com>,
Cong Wang <xiyou.wangcong@...il.com>,
Jiri Pirko <jiri@...nulli.us>
Cc: Peilin Ye <peilin.ye@...edance.com>,
Daniel Borkmann <daniel@...earbox.net>,
John Fastabend <john.r.fastabend@...el.com>,
Vlad Buslov <vladbu@...lanox.com>,
Pedro Tammela <pctammela@...atatu.com>,
Hillf Danton <hdanton@...a.com>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, Cong Wang <cong.wang@...edance.com>,
Peilin Ye <yepeilin.cs@...il.com>
Subject: [PATCH net 0/6] net/sched: Fixes for sch_ingress and sch_clsact
Hi all,
These are fixes for ingress and clsact Qdiscs:
[1,2/6]: ingress and clsact Qdiscs should only be created under ffff:fff1
[3/6]: Under ffff:fff1, only create ingress and clsact Qdiscs (for now,
at least)
[4/6]: After creating ingress and clsact Qdiscs under ffff:fff1, do not
graft them again to anywhere else (e.g. as the inner Qdisc of a
TBF Qdisc)
[5/6]: Prepare for [6/6], do not reuse that for-loop in qdisc_graft()
for ingress and clsact Qdiscs
[6/6]: Fix use-after-free [a] in mini_qdisc_pair_swap()
Please review (especially [6/6]), thanks! Other tasks, including:
- prohibiting sch_ingress, sch_clsact etc. in default_qdisc
- more cleanups for qdisc_graft()
Will be done in separate patches.
[a] https://syzkaller.appspot.com/bug?extid=b53a9c0d1ea4ad62da8b
Thanks,
Peilin Ye (6):
net/sched: sch_ingress: Only create under TC_H_INGRESS
net/sched: sch_clsact: Only create under TC_H_CLSACT
net/sched: Reserve TC_H_INGRESS (TC_H_CLSACT) for ingress (clsact)
Qdiscs
net/sched: Prohibit regrafting ingress or clsact Qdiscs
net/sched: Refactor qdisc_graft() for ingress and clsact Qdiscs
net/sched: qdisc_destroy() old ingress and clsact Qdiscs before
grafting
include/net/sch_generic.h | 8 ++++++
net/sched/sch_api.c | 54 +++++++++++++++++++++++++++++----------
net/sched/sch_generic.c | 14 +++++++---
net/sched/sch_ingress.c | 10 ++++++--
4 files changed, 67 insertions(+), 19 deletions(-)
--
2.20.1
Powered by blists - more mailing lists