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From:   Waiman Long <longman@redhat.com>
To:     Ingo Molnar <mingo@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
        Daniel Bristot de Oliveira <bristot@redhat.com>,
        Valentin Schneider <vschneid@redhat.com>
Cc:     Phil Auld <pauld@redhat.com>,
        Wenjie Li <wenjieli@qti.qualcomm.com>,
        =?UTF-8?q?David=20Wang=20=E7=8E=8B=E6=A0=87?= 
        <wangbiao3@xiaomi.com>, Quentin Perret <qperret@google.com>,
        Will Deacon <will@kernel.org>, linux-kernel@vger.kernel.org,
        Waiman Long <longman@redhat.com>
Subject: [PATCH v6 0/2] sched: Fix dup_user_cpus_ptr() & do_set_cpus_allowed() bugs
Date:   Fri, 30 Dec 2022 23:11:18 -0500
Message-Id: <20221231041120.440785-1-longman@redhat.com>
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 v6:
  - Update patch 2 to fix build error with !CONFIG_SMP configs.

 v5:
  - Add an alloc_user_cpus_ptr() helper and use it in patch 2.

 v4:
  - Make sure user_cpus_ptr allocation size is large enough for
    rcu_head.

This series fixes a UAF bug in dup_user_cpus_ptr() and uses kfree_rcu()
in do_set_cpus_allowed to avoid lockdep splats.

Waiman Long (2):
  sched: Fix use-after-free bug in dup_user_cpus_ptr()
  sched: Use kfree_rcu() in do_set_cpus_allowed()

 kernel/sched/core.c | 65 +++++++++++++++++++++++++++++++++++++++------
 1 file changed, 57 insertions(+), 8 deletions(-)

-- 
2.31.1