From: Alexey Gladkov <gladkov.alexey@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Linux FS Devel <linux-fsdevel@vger.kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Alexey Gladkov <legion@kernel.org>,
"Eric W . Biederman" <ebiederm@xmission.com>,
Kees Cook <keescook@chromium.org>
Subject: [PATCH v1 0/2] proc: Relax check of mount visibility
Date: Mon, 27 Jul 2020 16:14:09 +0200 [thread overview]
Message-ID: <20200727141411.203770-1-gladkov.alexey@gmail.com> (raw)
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
next reply other threads:[~2020-07-27 14:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 14:14 Alexey Gladkov [this message]
2020-07-27 14:14 ` [PATCH v1 1/2] proc: Relax check of mount visibility Alexey Gladkov
2020-07-27 14:14 ` [PATCH v1 2/2] Show /proc/self/net only for CAP_NET_ADMIN Alexey Gladkov
2020-07-27 16:29 ` Eric W. Biederman
2020-07-28 13:54 ` Alexey Gladkov
2020-07-31 16:10 ` [PATCH v2 " Alexey Gladkov
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