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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.27:
Git 2.27.1
Git 2.26.3
Git 2.25.5
Git 2.24.4
Git 2.23.4
Git 2.22.5
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.26:
Git 2.26.3
Git 2.25.5
Git 2.24.4
Git 2.23.4
Git 2.22.5
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.25:
Git 2.25.5
Git 2.24.4
Git 2.23.4
Git 2.22.5
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.24:
Git 2.24.4
Git 2.23.4
Git 2.22.5
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.23:
Git 2.23.4
Git 2.22.5
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.22:
Git 2.22.5
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.21:
Git 2.21.4
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.20:
Git 2.20.5
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.19:
Git 2.19.6
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.18:
Git 2.18.5
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.17:
Git 2.17.6
unpack_trees(): start with a fresh lstat cache
run-command: invalidate lstat cache after a command finished
checkout: fix bug that makes checkout follow symlinks in leading path
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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We really want to avoid relying on stale information.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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In the previous commit, we intercepted calls to `rmdir()` to invalidate
the lstat cache in the successful case, so that the lstat cache could
not have the idea that a directory exists where there is none.
The same situation can arise, of course, when a separate process is
spawned (most notably, this is the case in `submodule_move_head()`).
Obviously, we cannot know whether a directory was removed in that
process, therefore we must invalidate the lstat cache afterwards.
Note: in contrast to `lstat_cache_aware_rmdir()`, we invalidate the
lstat cache even in case of an error: the process might have removed a
directory and still have failed afterwards.
Co-authored-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Before checking out a file, we have to confirm that all of its leading
components are real existing directories. And to reduce the number of
lstat() calls in this process, we cache the last leading path known to
contain only directories. However, when a path collision occurs (e.g.
when checking out case-sensitive files in case-insensitive file
systems), a cached path might have its file type changed on disk,
leaving the cache on an invalid state. Normally, this doesn't bring
any bad consequences as we usually check out files in index order, and
therefore, by the time the cached path becomes outdated, we no longer
need it anyway (because all files in that directory would have already
been written).
But, there are some users of the checkout machinery that do not always
follow the index order. In particular: checkout-index writes the paths
in the same order that they appear on the CLI (or stdin); and the
delayed checkout feature -- used when a long-running filter process
replies with "status=delayed" -- postpones the checkout of some entries,
thus modifying the checkout order.
When we have to check out an out-of-order entry and the lstat() cache is
invalid (due to a previous path collision), checkout_entry() may end up
using the invalid data and thrusting that the leading components are
real directories when, in reality, they are not. In the best case
scenario, where the directory was replaced by a regular file, the user
will get an error: "fatal: unable to create file 'foo/bar': Not a
directory". But if the directory was replaced by a symlink, checkout
could actually end up following the symlink and writing the file at a
wrong place, even outside the repository. Since delayed checkout is
affected by this bug, it could be used by an attacker to write
arbitrary files during the clone of a maliciously crafted repository.
Some candidate solutions considered were to disable the lstat() cache
during unordered checkouts or sort the entries before passing them to
the checkout machinery. But both ideas include some performance penalty
and they don't future-proof the code against new unordered use cases.
Instead, we now manually reset the lstat cache whenever we successfully
remove a directory. Note: We are not even checking whether the directory
was the same as the lstat cache points to because we might face a
scenario where the paths refer to the same location but differ due to
case folding, precomposed UTF-8 issues, or the presence of `..`
components in the path. Two regression tests, with case-collisions and
utf8-collisions, are also added for both checkout-index and delayed
checkout.
Note: to make the previously mentioned clone attack unfeasible, it would
be sufficient to reset the lstat cache only after the remove_subtree()
call inside checkout_entry(). This is the place where we would remove a
directory whose path collides with the path of another entry that we are
currently trying to check out (possibly a symlink). However, in the
interest of a thorough fix that does not leave Git open to
similar-but-not-identical attack vectors, we decided to intercept
all `rmdir()` calls in one fell swoop.
This addresses CVE-2021-21300.
Co-authored-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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master
l10n-2.28.0-rnd1
* tag 'l10n-2.28.0-rnd1' of https://www.github.com/git-l10n/git-po:
l10n: es: 2.28.0 round 1
l10n: de.po: Update German translation for Git v2.28.0
l10n: de.po: fix grammar
l10n: zh_CN: for git v2.28.0 l10n round 1
l10n: zh_TW.po: v2.28.0 round 1 (0 untranslated)
l10n: vi.po: correct "ident line" translation
l10n: vi.po(4931t): Updated translation for v2.28.0
l10n: fr v2.28.0 round 1
l10n: sv.po: Update Swedish translation (4931t0f0u)
l10n: it.po: update the Italian translation for Git 2.28.0 round 1
l10n: tr: v2.28.0 round 1
l10n: git.pot: v2.28.0 round 1 (70 new, 14 removed)
l10n: Update Catalan translation
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* 'master' of github.com:Softcatala/git-po:
l10n: Update Catalan translation
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Signed-off-by: Christopher Diaz Riveros <christopher.diaz.riv@gmail.com>
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A new hook.
* ps/ref-transaction-hook:
githooks.txt: use correct "reference-transaction" hook name
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The "reference transaction" hook was introduced in commit 6754159767
(refs: implement reference transaction hook, 2020-06-19). The name of
the hook is declared as "reference-transaction" in "refs.c" and
testcases, but the name declared in "githooks.txt" is different.
Signed-off-by: Bojun Chen <bojun.cbj@alibaba-inc.com>
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Reviewed-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Matthias Rüster <matthias.ruester@gmail.com>
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Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Matthias Rüster <matthias.ruester@gmail.com>
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Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix to a "git prompt" regression during this development cycle.
* en/sparse-status:
git-prompt: change == to = for zsh's sake
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Translate 70 new messages (4931t0f0u) for git 2.28.0.
Reviewed-by: Fangyi Zhou <me@fangyi.io>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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* 'l10n/zh_TW/200716' of github.com:l10n-tw/git-po:
l10n: zh_TW.po: v2.28.0 round 1 (0 untranslated)
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When using git-prompt.sh with zsh, __git_ps1 currently errs
when inside a repo with:
__git_ps1:96: = not found
Avoid using non-portable "==" that is only understood by bash
and not zsh. Change to "=" so that the prompt script becomes
usable with zsh again.
Signed-off-by: David J. Malan <malan@harvard.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* https://github.com/prati0100/git-gui:
git-gui: allow opening work trees from the startup dialog
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Signed-off-by: Yi-Jyun Pan <pan93412@gmail.com>
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While we're at it, fix some minor misspelling
and improve translation for 3-way-merging.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Tran Ngoc Quan <vnwildman@gmail.com>
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Signed-off-by: Tran Ngoc Quan <vnwildman@gmail.com>
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Last minute fix-up to tests for portability.
* dl/branch-cleanup:
t3200: don't grep for `strerror()` string
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Last minute fix-up to documentation.
* js/pu-to-seen:
gitworkflows.txt: fix broken subsection underline
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Last minute fix-up to the release notes.
* jc/relnotes-v0-extension-update:
RelNotes: update the v0 with extension situation
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In 6b7093064a ("t3200: test for specific errors", 2020-06-15), we
learned to grep stderr to ensure that the failing `git branch`
invocations fail for the right reason. In two of these tests, we grep
for "File exists", expecting the string to show up there since config.c
calls `error_errno()`, which ends up including `strerror(errno)` in the
error message.
But as we saw in 4605a73073 ("t1091: don't grep for `strerror()`
string", 2020-03-08), there exists at least one implementation where
`strerror()` yields a slightly different string than the one we're
grepping for. In particular, these tests fail on the NonStop platform.
Similar to 4605a73073, grep for the beginning of the string instead to
avoid relying on `strerror()` behavior.
Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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AsciiDoctor renders the "~~~~~~~~~" literally. That's not our intention:
it is supposed to indicate a level 2 subsection. In 828197de8f ("docs:
adjust for the recent rename of `pu` to `seen`", 2020-06-25), the length
of this section header grew by two characters but we didn't adjust the
number of ~ characters accordingly. AsciiDoc handles this discrepancy ok
and still picks this up as a subsection title, but Asciidoctor is not as
forgiving.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With the two-patch series for regression fix, to the users from 2.27
days, there is no visible behaviour change---we do not warn and fail
use of v0 repositories with newer extensions yet, so there is nothing
to note in the backward compatibility section.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Johannes Schindelin
Matheus Tavares
Junio C Hamano
Jiang Xin
Christopher Diaz Riveros
Bojun Chen
Matthias Rüster
Ralf Thielow
Taylor Blau
David J. Malan
Yi-Jyun Pan
Đoàn Trần Công Danh
Tran Ngoc Quan
Martin Ågren