linux-kernel - [PATCH 5.4.y 0/2] Missing cgroup RCU patches for 5.4.y

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241202111024.11212-1-siddh.raman.pant@oracle.com>
Date: Mon,  2 Dec 2024 16:40:22 +0530
From: Siddh Raman Pant <siddh.raman.pant@...cle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: stable <stable@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH 5.4.y 0/2] Missing cgroup RCU patches for 5.4.y

5.4 doesn't have commit backported which introduces RCU for cgroup
root_list, but has a commit fixing a UAF (and thus a CVE) which depends
on it.

Thus, we need to backport the original commits. See thread:
https://lore.kernel.org/all/xr93ikus2nd1.fsf@gthelen-cloudtop.c.googlers.com/

This patch series backports the requisite commits to 5.4.y, which are
picked up from the above mentioned thread.

Thanks,
Siddh

Waiman Long (1):
  cgroup: Move rcu_head up near the top of cgroup_root

Yafang Shao (1):
  cgroup: Make operations on the cgroup root_list RCU safe

 include/linux/cgroup-defs.h     |  7 ++++---
 kernel/cgroup/cgroup-internal.h |  3 ++-
 kernel/cgroup/cgroup.c          | 23 ++++++++++++++++-------
 3 files changed, 22 insertions(+), 11 deletions(-)

-- 
2.45.2