linux-kernel - [PATCH v1 0/2] proc: Relax check of mount visibility

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Message-Id: <20200727141411.203770-1-gladkov.alexey@gmail.com>
Date:   Mon, 27 Jul 2020 16:14:09 +0200
From:   Alexey Gladkov <gladkov.alexey@...il.com>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Alexey Gladkov <legion@...nel.org>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Kees Cook <keescook@...omium.org>
Subject: [PATCH v1 0/2] proc: Relax check of mount visibility

If only the dynamic part of procfs is mounted (subset=pid), then there is no
need to check if procfs is fully visible to the user in the new user namespace.

Alexey Gladkov (2):
  proc: Relax check of mount visibility
  Show /proc/self/net only for CAP_NET_ADMIN

 fs/namespace.c     | 27 ++++++++++++++++-----------
 fs/proc/proc_net.c |  6 ++++++
 fs/proc/root.c     | 16 +++++++++-------
 include/linux/fs.h |  1 +
 4 files changed, 32 insertions(+), 18 deletions(-)

-- 
2.25.4