From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>,
Linux Containers <containers@lists.linux-foundation.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Subject: Re: Use cases for multiple uid mapping?
Date: Sat, 29 Aug 2020 22:48:11 -0700 [thread overview]
Message-ID: <1598766491.5540.2.camel@HansenPartnership.com> (raw)
In-Reply-To: <87zh6eiyv7.fsf@x220.int.ebiederm.org>
On Fri, 2020-08-28 at 10:17 -0500, Eric W. Biederman wrote:
[...]
> Can people follow up to this and report their use cases?
>
> There are some real challenges and I would like to see if we
> can solve them, while avoiding scary problems like changing
> uids on write.
The main problem shiftfs has that fsuid doesn't is write at privileged
id, so mainly safely writing to kuid 0.
shiftfs tried to solve this by exposing the shifted mount point safely,
but maybe there's another way to do it.
James
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next prev parent reply other threads:[~2020-08-30 5:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 15:17 Use cases for multiple uid mapping? Eric W. Biederman
2020-08-28 15:55 ` Stéphane Graber via Containers
2020-08-28 17:03 ` Sargun Dhillon
2020-08-30 5:48 ` James Bottomley [this message]
2020-09-01 6:06 ` Serge E. Hallyn
2020-09-01 14:53 ` Eric W. Biederman
2020-09-24 17:09 ` Alban Crequy
2020-09-25 8:13 ` Christian Brauner
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