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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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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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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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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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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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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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l10n-2.39.0-rnd1
* tag 'l10n-2.39.0-rnd1' of https://github.com/git-l10n/git-po:
l10n: zh_TW.po: Git 2.39-rc2
l10n: tr: v2.39.0 updates
l10n: Update Catalan translation
l10n: bg.po: Updated Bulgarian translation (5501t)
l10n: de.po: update German translation
l10n: zh_CN v2.39.0 round 1
l10n: fr: v2.39 rnd 1
l10n: po-id for 2.39 (round 1)
l10n: sv.po: Update Swedish translation (5501t0f0)
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: pan93412 <pan93412@gmail.com>
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The old version we currently use runs in node.js v12.x, which is being
deprecated in GitHub Actions. The new version uses node.js v16.x.
Incidentally, this also avoids the warning about the deprecated
`::set-output::` workflow command because the newer version of the
`github-script` Action uses the recommended new way to specify outputs.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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Adjust the GitHub CI to newer ubuntu release.
* jx/ci-ubuntu-fix:
ci: install python on ubuntu
ci: use the same version of p4 on both Linux and macOS
ci: remove the pipe after "p4 -V" to catch errors
github-actions: run gcc-8 on ubuntu-20.04 image
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CI fix.
* js/ci-use-newer-up-down-artifact:
ci: avoid using deprecated {up,down}load-artifacts Action
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CI fix.
* ab/ci-use-macos-12:
CI: upgrade to macos-12, and pin OSX version
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CI fix.
* ab/ci-retire-set-output:
CI: migrate away from deprecated "set-output" syntax
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CI fix.
* ab/ci-musl-bash-fix:
CI: don't explicitly pick "bash" shell outside of Windows, fix regression
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Update GitHub CI to use actions/checkout@v3; use of the older
checkout@v2 gets annoying deprecation notices.
* od/ci-use-checkout-v3-when-applicable:
ci(main): upgrade actions/checkout to v3
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CI fix.
* js/ci-use-newer-up-down-artifact:
ci: avoid using deprecated {up,down}load-artifacts Action
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CI fix.
* ab/ci-use-macos-12:
CI: upgrade to macos-12, and pin OSX version
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CI fix.
* ab/ci-retire-set-output:
CI: migrate away from deprecated "set-output" syntax
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CI fix.
* ab/ci-musl-bash-fix:
CI: don't explicitly pick "bash" shell outside of Windows, fix regression
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Update GitHub CI to use actions/checkout@v3; use of the older
checkout@v2 gets annoying deprecation notices.
* od/ci-use-checkout-v3-when-applicable:
ci(main): upgrade actions/checkout to v3
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I haven't been very active in the community lately, but I'm soon going
to lose access to my previous commit email (@usp.br); so add my current
personal address to mailmap for any future message exchanges or patch
contributions.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In b3b1a21d1a5 (sequencer: rewrite update-refs as user edits todo list,
2022-07-19), the 'todo_list_filter_update_refs()' step was added to handle
the removal of 'update-ref' lines from a 'rebase-todo'. Specifically, it
removes potential ref updates from the "update refs state" if a ref does not
have a corresponding 'update-ref' line.
However, because 'write_update_refs_state()' will not update the state if
the 'refs_to_oids' list was empty, removing *all* 'update-ref' lines will
result in the state remaining unchanged from how it was initialized (with
all refs' "after" OID being null). Then, when the ref update is applied, all
refs will be updated to null and consequently deleted.
To fix this, delete the 'update-refs' state file when 'refs_to_oids' is
empty. Additionally, add a tests covering "all update-ref lines removed"
cases.
Reported-by: herr.kaste <herr.kaste@gmail.com>
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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Recently, a vulnerability was reported that can lead to an out-of-bounds
write when reading an unreasonably large gitattributes file. The root
cause of this error are multiple integer overflows in different parts of
the code when there are either too many lines, when paths are too long,
when attribute names are too long, or when there are too many attributes
declared for a pattern.
As all of these are related to size, it seems reasonable to restrict the
size of the gitattributes file via git-fsck(1). This allows us to both
stop distributing known-vulnerable objects via common hosting platforms
that have fsck enabled, and users to protect themselves by enabling the
`fetch.fsckObjects` config.
There are basically two checks:
1. We verify that size of the gitattributes file is smaller than
100MB.
2. We verify that the maximum line length does not exceed 2048
bytes.
With the preceding commits, both of these conditions would cause us to
either ignore the complete gitattributes file or blob in the first case,
or the specific line in the second case. Now with these consistency
checks added, we also grow the ability to stop distributing such files
in the first place when `receive.fsckObjects` is enabled.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the checks for gitattributes so that they can be extended more
readily.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `fsck_finish()` we check all blobs for consistency that we have found
during the tree walk, but that haven't yet been checked. This is only
required for gitmodules right now, but will also be required for a new
check for gitattributes.
Pull out a function `fsck_blobs()` that allows the caller to check a set
of blobs for consistency.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In general, we don't need to validate blob contents as they are opaque
blobs about whose content Git doesn't need to care about. There are some
exceptions though when blobs are linked into trees so that they would be
interpreted by Git. We only have a single such check right now though,
which is the one for gitmodules that has been added in the context of
CVE-2018-11235.
Now we have found another vulnerability with gitattributes that can lead
to out-of-bounds writes and reads. So let's refactor `fsck_blob()` so
that it is more extensible and can check different types of blobs.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both the padding and wrapping formatting directives allow the caller to
specify an integer that ultimately leads to us adding this many chars to
the result buffer. As a consequence, it is trivial to e.g. allocate 2GB
of RAM via a single formatting directive and cause resource exhaustion
on the machine executing this logic. Furthermore, it is debatable
whether there are any sane usecases that require the user to pad data to
2GB boundaries or to indent wrapped data by 2GB.
Restrict the input sizes to 16 kilobytes at a maximum to limit the
amount of bytes that can be requested by the user. This is not meant
as a fix because there are ways to trivially amplify the amount of
data we generate via formatting directives; the real protection is
achieved by the changes in previous steps to catch and avoid integer
wraparound that causes us to under-allocate and access beyond the
end of allocated memory reagions. But having such a limit
significantly helps fuzzing the pretty format, because the fuzzer is
otherwise quite fast to run out-of-memory as it discovers these
formatters.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `strbuf_utf8_replace`, we preallocate the destination buffer and then
use `memcpy` to copy bytes into it at computed offsets. This feels
rather fragile and is hard to understand at times. Refactor the code to
instead use `strbuf_add` and `strbuf_addstr` so that we can be sure that
there is no possibility to perform an out-of-bounds write.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `strbuf_utf8_replace()`, we call `utf8_width()` to compute the width
of the current glyph. If the glyph is a control character though it can
be that `utf8_width()` returns `-1`, but because we assign this value to
a `size_t` the conversion will cause us to underflow. This bug can
easily be triggered with the following command:
$ git log --pretty='format:xxx%<|(1,trunc)%x10'
>From all I can see though this seems to be a benign underflow that has
no security-related consequences.
Fix the bug by using an `int` instead. When we see a control character,
we now copy it into the target buffer but don't advance the current
width of the string.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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