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From: Jeff King <peff@peff.net>
To: git@vger.kernel.org
Cc: Jonathan Nieder <jrnieder@gmail.com>
Subject: [PATCH 0/7] forbidding symlinked .gitattributes and .gitignore
Date: Mon, 5 Oct 2020 03:17:51 -0400
Message-ID: <20201005071751.GA2290770@coredump.intra.peff.net> (raw)

About 2 years ago as part of a security release we made it illegal to
have a symlinked .gitmodules file (refusing it both in the index and via
fsck). At the time we discussed (on the security list) outlawing
symlinks for other .git files in the same way, but we decided not to do
so as part of the security release, as it wasn't strictly necessary.

We publicly revisited the topic in:

  https://lore.kernel.org/git/20190114230902.GG162110@google.com/

but there were a few fixes needed, and it got forgotten. So here it is
again, with those fixes:

  [1/7]: fsck_tree(): fix shadowed variable
  [2/7]: fsck_tree(): wrap some long lines

    These first two are actually an unrelated fix and cleanup in the
    nearby code. Could be picked up independently.

  [3/7]: t7415: rename to expand scope
  [4/7]: t7450: test verify_path() handling of gitmodules

    Preparatory test cleanup and improvement for existing features.

  [5/7]: t0060: test obscured .gitattributes and .gitignore matching
  [6/7]: verify_path(): disallow symlinks in .gitattributes and .gitignore
  [7/7]: fsck: complain when .gitattributes or .gitignore is a symlink

    The actual feature, covering the index and fsck.

 fsck.c                                        | 79 ++++++++++++++-----
 read-cache.c                                  | 12 ++-
 t/helper/test-path-utils.c                    | 41 +++++++---
 t/t0060-path-utils.sh                         | 20 +++++
 ...odule-names.sh => t7450-bad-meta-files.sh} | 69 ++++++++++++++--
 5 files changed, 179 insertions(+), 42 deletions(-)
 rename t/{t7415-submodule-names.sh => t7450-bad-meta-files.sh} (77%)

-Peff

             reply index

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-05  7:17 Jeff King [this message]
2020-10-05  7:19 ` [PATCH 1/7] fsck_tree(): fix shadowed variable Jeff King
2020-10-05  7:44   ` Jonathan Nieder
2020-10-05  8:20     ` Jeff King
2020-10-05  8:29       ` Jonathan Nieder
2020-10-05  7:19 ` [PATCH 2/7] fsck_tree(): wrap some long lines Jeff King
2020-10-05  7:46   ` Jonathan Nieder
2020-10-05  7:19 ` [PATCH 3/7] t7415: rename to expand scope Jeff King
2020-10-05  7:50   ` Jonathan Nieder
2020-10-05  8:24     ` Jeff King
2020-10-05  8:34       ` Jonathan Nieder
2020-10-05  8:49         ` Jeff King
2020-10-05  7:20 ` [PATCH 4/7] t7450: test verify_path() handling of gitmodules Jeff King
2020-10-05  7:53   ` Jonathan Nieder
2020-10-05  8:30     ` Jeff King
2020-10-05  8:38       ` Jonathan Nieder
2020-10-05  7:21 ` [PATCH 5/7] t0060: test obscured .gitattributes and .gitignore matching Jeff King
2020-10-05  8:03   ` Jonathan Nieder
2020-10-05  8:40     ` Jeff King
2020-10-05 21:20       ` Johannes Schindelin
2020-10-06 14:01         ` Jeff King
2020-10-05  7:24 ` [PATCH 6/7] verify_path(): disallow symlinks in .gitattributes and .gitignore Jeff King
2020-10-05  8:09   ` Jonathan Nieder
2020-10-05 12:07     ` Jeff King
2020-10-05  7:25 ` [PATCH 7/7] fsck: complain when .gitattributes or .gitignore is a symlink Jeff King
2020-10-05  8:12   ` Jonathan Nieder
2020-10-05  8:53     ` Jeff King
2020-10-05  7:32 ` [PATCH 0/7] forbidding symlinked .gitattributes and .gitignore Jonathan Nieder
2020-10-05  8:58   ` Jeff King
2020-10-05 12:16 ` [PATCH v2 0/8] " Jeff King
2020-10-05 12:16   ` [PATCH v2 1/8] fsck_tree(): fix shadowed variable Jeff King
2020-10-05 12:16   ` [PATCH v2 2/8] fsck_tree(): wrap some long lines Jeff King
2020-10-05 12:16   ` [PATCH v2 3/8] t7415: rename to expand scope Jeff King
2020-10-05 12:16   ` [PATCH v2 4/8] t7450: test verify_path() handling of gitmodules Jeff King
2020-10-05 12:16   ` [PATCH v2 5/8] t7450: test .gitmodules symlink matching against obscured names Jeff King
2020-10-05 12:16   ` [PATCH v2 6/8] t0060: test obscured .gitattributes and .gitignore matching Jeff King
2020-10-05 12:16   ` [PATCH v2 7/8] verify_path(): disallow symlinks in .gitattributes and .gitignore Jeff King
2020-10-27  3:35     ` Jonathan Nieder
2020-10-27  7:58       ` Jeff King
2020-10-27 22:00         ` Junio C Hamano
2020-10-28  9:41           ` Jeff King
2020-10-27 23:43         ` Jonathan Nieder
2020-10-28 19:18           ` Junio C Hamano
2020-10-05 12:16   ` [PATCH v2 8/8] fsck: complain when .gitattributes or .gitignore is a symlink Jeff King
2020-10-06 20:41   ` [PATCH v2 0/8] forbidding symlinked .gitattributes and .gitignore Junio C Hamano
2020-10-20 23:19   ` Philip Oakley
2020-10-23  8:17     ` [PATCH] documentation symlink restrictions for .git* files Jeff King
2020-10-23  8:27       ` Jeff King
2020-10-26 22:18       ` Philip Oakley
2020-10-26 22:53         ` Jeff King
2020-10-26 23:32           ` Junio C Hamano
2020-10-27  7:26             ` Jeff King
2020-10-27 18:45               ` Junio C Hamano
2020-10-27 21:00                 ` Philip Oakley
2020-10-28 19:14                   ` Junio C Hamano

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