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From: Glen Choo <chooglen@google.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, Emily Shaffer <emilyshaffer@google.com>,
	justin@justinsteven.com, Taylor Blau <me@ttaylorr.com>,
	martinvonz@google.com,
	"brian m. carlson" <sandals@crustytoothpaste.net>
Subject: Re: Bare repositories in the working tree are a security risk
Date: Thu, 14 Apr 2022 09:41:36 -0700	[thread overview]
Message-ID: <kl6lh76v8vnj.fsf@chooglen-macbookpro.roam.corp.google.com> (raw)
In-Reply-To: <xmqqwnfs4kud.fsf@gitster.g>

Junio C Hamano <gitster@pobox.com> writes:

> Glen Choo <chooglen@google.com> writes:
>
>> Martin observed that, viability aside, there's another approach that I
>> haven't discussed:
>>
>>   == 5 Disable bare repo discovery
>>
>>   We could introduce a config value that disables bare repo discovery
>>   altogether. This would only disable _discovery_; a user can still use
>>   the bare repo by specifying the gitdir (e.g. via `--git-dir=.` or
>>   GIT_DIR).
>
> Does it or does it not count as "allowing discovery to do its job"
> if you go to the directory, knowing that the directory is a bare
> one, and expect Git to work in it?
>
> I am guessing that your definition of "discovery" is not even
> consider if the current directory is a repository and always force
> the user to tell us with --git-dir or GIT_DIR.

Yes, I mean that even the current directory will be ignored when
discovery is disabled.

>                                                I am not sure that
> is realistically feasible (I am thinking of cases like "git fetch"
> going to the remote repository on the local disk that is bare to run
> "git upload-pack"), but if the fallout is not too bad, it may be a
> good heuristics.

Good detail - I hadn't considered the impact on our own child processes.
I suspect this might be a huge undertaking. Unless there is significant
interest in this option, I probably won't pursue it further.

  reply	other threads:[~2022-04-14 17:02 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-06 22:43 Glen Choo
2022-04-06 23:22 ` [PATCH] fsck: detect bare repos in trees and warn Glen Choo
2022-04-07 12:42   ` Johannes Schindelin
2022-04-07 13:21     ` Derrick Stolee
2022-04-07 14:14       ` Ævar Arnfjörð Bjarmason
2022-04-14 20:02         ` Glen Choo
2022-04-15 12:46           ` Ævar Arnfjörð Bjarmason
2022-04-07 15:11       ` Junio C Hamano
2022-04-13 22:24       ` Glen Choo
2022-04-07 13:12   ` Ævar Arnfjörð Bjarmason
2022-04-07 15:20   ` Junio C Hamano
2022-04-07 18:38 ` Bare repositories in the working tree are a security risk John Cai
2022-04-07 21:24 ` brian m. carlson
2022-04-07 21:53   ` Justin Steven
2022-04-07 22:10     ` brian m. carlson
2022-04-07 22:40       ` rsbecker
2022-04-08  5:54       ` Junio C Hamano
2022-04-14  0:03         ` Junio C Hamano
2022-04-14  0:04         ` Glen Choo
2022-04-13 23:44       ` Glen Choo
2022-04-13 20:37 ` Glen Choo
2022-04-13 23:36   ` Junio C Hamano
2022-04-14 16:41     ` Glen Choo [this message]
2022-04-14 17:35       ` Junio C Hamano
2022-04-14 18:19         ` Junio C Hamano
2022-04-15 21:33         ` Glen Choo
2022-04-15 22:17           ` Junio C Hamano
2022-04-16  0:52             ` Taylor Blau
2022-04-15 22:43           ` Glen Choo
2022-04-15 20:13       ` Junio C Hamano
2022-04-15 23:45         ` Glen Choo
2022-04-15 23:59           ` Glen Choo
2022-04-16  1:00           ` Taylor Blau
2022-04-16  1:18             ` Junio C Hamano
2022-04-16  1:30               ` Taylor Blau
2022-04-16  0:34 ` Glen Choo
2022-04-16  0:41 ` Glen Choo
2022-04-16  1:28   ` Taylor Blau
2022-04-21 18:25     ` Emily Shaffer
2022-04-21 18:29       ` Emily Shaffer
2022-04-21 18:47         ` Junio C Hamano
2022-04-21 18:54           ` Taylor Blau
2022-04-21 19:09       ` Taylor Blau
2022-04-21 21:01         ` Emily Shaffer
2022-04-21 21:22           ` Taylor Blau
2022-04-29 23:57     ` Glen Choo
2022-04-30  1:14       ` Taylor Blau
2022-05-02 19:39         ` Glen Choo
2022-05-02 14:05       ` Philip Oakley
2022-05-02 18:50         ` Junio C Hamano

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