Unlike other test helper functions, 'test_oid' doesn't terminate its
output with a LF, but, alas, the reason for this, if any, is not
mentioned in 2c02b110da (t: add test functions to translate
hash-related values, 2018-09-13)).
Now, in the vast majority of cases 'test_oid' is invoked in a command
substitution that is part of a heredoc or supplies an argument to a
command or the value to a variable, and the command substitution would
chop off any trailing LFs, so in these cases the lack or presence of a
trailing LF in its output doesn't matter. However:
- There appear to be only three cases where 'test_oid' is not
invoked in a command substitution:
$ git grep '\stest_oid ' -- ':/t/*.sh'
t0000-basic.sh: test_oid zero >actual &&
t0000-basic.sh: test_oid zero >actual &&
t0000-basic.sh: test_oid zero >actual &&
These are all in test cases checking that 'test_oid' actually
works, and that the size of its output matches the size of the
corresponding hash function with conditions like
test $(wc -c <actual) -eq 40
In these cases the lack of trailing LF does actually matter,
though they could be trivially updated to account for the presence
of a trailing LF.
- There are also a few cases where the lack of trailing LF in
'test_oid's output actually hurts, because tests need to compare
its output with LF terminated file contents, forcing developers to
invoke it as 'echo $(test_oid ...)' to append the missing LF:
$ git grep 'echo "\?$(test_oid ' -- ':/t/*.sh'
t1302-repo-version.sh: echo $(test_oid version) >expect &&
t1500-rev-parse.sh: echo "$(test_oid algo)" >expect &&
t4044-diff-index-unique-abbrev.sh: echo "$(test_oid val1)" > foo &&
t4044-diff-index-unique-abbrev.sh: echo "$(test_oid val2)" > foo &&
t5313-pack-bounds-checks.sh: echo $(test_oid oidfff) >file &&
And there is yet another similar case in an in-flight topic at:
https://public-inbox.org/git/813e81a058227bd373cec802e443fcd677042fb4.1670862677.git.gitgitgadget@gmail.com/
Arguably we would be better off if 'test_oid' terminated its output
with a LF. So let's update 'test_oid' accordingly, update its tests
in t0000 to account for the extra character in those size tests, and
remove the now unnecessary 'echo $(...)' command substitutions around
'test_oid' invocations as well.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The editor program used by Git when editing the sequencer "todo" file
is determined by examining a few environment variables and also
affected by configuration variables. Introduce "git var
GIT_SEQUENCE_EDITOR" to give users access to the final result of the
logic without having to know the exact details.
This is very similar in spirit to 44fcb497 (Teach git var about
GIT_EDITOR, 2009-11-11) that introduced "git var GIT_EDITOR".
Signed-off-by: Sean Allred <allred.sean@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If you pass a bogus argument to %(refname), you may end up with a
message like this:
$ git for-each-ref --format='%(refname:foo)'
fatal: unrecognized %(refname:foo) argument: foo
which is confusing. It should just say:
fatal: unrecognized %(refname) argument: foo
which is clearer, and is consistent with most other atom parsers. Those
other parsers do not have the same problem because they pass the atom
name from a string literal in the parser function. But because the
parser for %(refname) also handles %(upstream) and %(push), it instead
uses atom->name, which includes the arguments. The oid atom parser which
handles %(tree), %(parent), etc suffers from the same problem.
It seems like the cleanest fix would be for atom->name to be _just_ the
name, since there's already a separate "args" field. But since that
field is also used for other things, we can't change it easily (e.g.,
it's how we find things in the used_atoms array, and clearly %(refname)
and %(refname:short) are not the same thing).
Instead, we'll teach our error_bad_arg() function to stop at the first
":". This is a little hacky, as we're effectively re-parsing the name,
but the format is simple enough to do this as a one-liner, and this
localizes the change to the error-reporting code.
We'll give the same treatment to err_no_arg(). None of its callers use
this atom->name trick, but it's worth future-proofing it while we're
here.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Atom parsers that take arguments generally have a catch-all for "this
arg is not recognized". Most of them use the same printf template, which
is good, because it makes life easier for translators. Let's pull this
template into a helper function, which makes the code in the parsers
shorter and avoids any possibility of differences.
As with the previous commit, we'll pick an arbitrary atom to make sure
the test suite covers this code.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Many atom parsers give the same error message, differing only in the
name of the atom. If we use "%s does not take arguments", that should
make life easier for translators, as they only need to translate one
string. And in doing so, we can easily pull it into a helper function to
make sure they are all using the exact same string.
I've added a basic test here for %(HEAD), just to make sure this code is
exercised at all in the test suite. We could cover each such atom, but
the effort-to-reward ratio of trying to maintain an exhaustive list
doesn't seem worth it.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A regression was introduced in
12fc4ad89e (diff.c: use utf8_strwidth() to count display width, 2022-09-14)
that causes missing newlines after "Unmerged" entries in `git diff
--cached --stat` output.
This problem affects v2.39.0-rc0 through v2.39.0.
Add the missing newline along with a new test to cover this
behavior.
Signed-off-by: Peter Grayson <pete@jpgrayson.net>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git var UNKNOWN_VARIABLE" and "git var VARIABLE" with the variable
given an empty value used to behave identically. Now the latter
just gives an empty output, while the former still gives an error
message.
* sa/git-var-empty:
var: allow GIT_EDITOR to return null
var: do not print usage() with a correct invocation
The pack-bitmap machinery is taught to log the paths of redundant
bitmap(s) to trace2 instead of stderr.
* tl/pack-bitmap-absolute-paths:
pack-bitmap.c: trace bitmap ignore logs when midx-bitmap is found
pack-bitmap.c: break out of the bitmap loop early if not tracing
pack-bitmap.c: avoid exposing absolute paths
pack-bitmap.c: remove unnecessary "open_pack_index()" calls
Various leak fixes.
* ab/various-leak-fixes:
built-ins: use free() not UNLEAK() if trivial, rm dead code
revert: fix parse_options_concat() leak
cherry-pick: free "struct replay_opts" members
rebase: don't leak on "--abort"
connected.c: free the "struct packed_git"
sequencer.c: fix "opts->strategy" leak in read_strategy_opts()
ls-files: fix a --with-tree memory leak
revision API: call graph_clear() in release_revisions()
unpack-file: fix ancient leak in create_temp_file()
built-ins & libs & helpers: add/move destructors, fix leaks
dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache"
read-cache.c: clear and free "sparse_checkout_patterns"
commit: discard partial cache before (re-)reading it
{reset,merge}: call discard_index() before returning
tests: mark tests as passing with SANITIZE=leak
"merge-tree" learns a new `--merge-base` option.
* kz/merge-tree-merge-base:
docs: fix description of the `--merge-base` option
merge-tree.c: allow specifying the merge-base when --stdin is passed
merge-tree.c: add --merge-base=<commit> option
`git bisect` becomes a builtin.
* dd/git-bisect-builtin:
bisect; remove unused "git-bisect.sh" and ".gitignore" entry
Turn `git bisect` into a full built-in
bisect--helper: log: allow arbitrary number of arguments
bisect--helper: handle states directly
bisect--helper: emit usage for "git bisect"
bisect test: test exit codes on bad usage
bisect--helper: identify as bisect when report error
bisect-run: verify_good: account for non-negative exit status
bisect run: keep some of the post-v2.30.0 output
bisect: fix output regressions in v2.30.0
bisect: refactor bisect_run() to match CodingGuidelines
bisect tests: test for v2.30.0 "bisect run" regressions
Currently, auto correction doesn't work reliably for commands which must
run in a work tree (e.g. `git status`) in Git work trees which are
created from a bare repository.
As far as I'm able to determine, this has been broken since commit
659fef199f (help: use early config when autocorrecting aliases,
2017-06-14), where the call to `git_config()` in `help_unknown_cmd()`
was replaced with a call to `read_early_config()`. From what I can tell,
the actual cause for the unexpected error is that we call
`git_default_config()` in the `git_unknown_cmd_config` callback instead
of simply returning `0` for config entries which we aren't interested
in.
Calling `git_default_config()` in this callback to `read_early_config()`
seems like a bad idea since those calls will initialize a bunch of state
in `environment.c` (among other things `is_bare_repository_cfg`) before
we've properly detected that we're running in a work tree.
All other callbacks provided to `read_early_config()` appear to only
extract their configurations while simply returning `0` for all other
config keys.
This commit changes the `git_unknown_cmd_config` callback to not call
`git_default_config()`. Instead we also simply return `0` for config
keys which we're not interested in.
Additionally the commit adds a new test case covering `help.autocorrect`
in a work tree created from a bare clone.
Signed-off-by: Simon Gerber <gesimu@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When Git's test suite uses `test_cmp`, it is not actually trying to
compare binary files as the name `cmp` would suggest to users familiar
with Unix' tools, but the tests instead verify that actual output
matches the expected text.
On Unix, `cmp` works well enough for Git's purposes because only Line
Feed characters are used as line endings. However, on Windows, while
most tools accept Line Feeds as line endings, many tools produce
Carriage Return + Line Feed line endings, including some of the tools
used by the test suite (which are therefore provided via Git for Windows
SDK). Therefore, `cmp` would frequently fail merely due to different
line endings.
To accommodate for that, the `mingw_test_cmp` function was introduced
into Git's test suite to perform a line-by-line comparison that ignores
line endings. This function is a Bash function that is only used on
Windows, everywhere else `cmp` is used.
This is a double whammy because `cmp` is fast, and `mingw_test_cmp` is
slow, even more so on Windows because it is a Bash script function, and
Bash scripts are known to run particularly slowly on Windows due to
Bash's need for the POSIX emulation layer provided by the MSYS2 runtime.
The commit message of 32ed3314c1 (t5351: avoid using `test_cmp` for
binary data, 2022-07-29) provides an illuminating account of the
consequences: On Windows, the platform on which Git could really use all
the help it can get to improve its performance, the time spent on one
entire test script was reduced from half an hour to less than half a
minute merely by avoiding a single call to `mingw_test_cmp` in but a
single test case.
Learning the lesson to avoid shell scripting wherever possible, the Git
for Windows project implemented a minimal replacement for
`mingw_test_cmp` in the form of a `test-tool` subcommand that parses the
input files line by line, ignoring line endings, and compares them.
Essentially the same thing as `mingw_test_cmp`, but implemented in
C instead of Bash. This solution served the Git for Windows project
well, over years.
However, when this solution was finally upstreamed, the conclusion was
reached that a change to use `git diff --no-index` instead of
`mingw_test_cmp` was more easily reviewed and hence should be used
instead.
The reason why this approach was not even considered in Git for Windows
is that in 2007, there was already a motion on the table to use Git's
own diff machinery to perform comparisons in Git's test suite, but it
was dismissed in https://lore.kernel.org/git/xmqqbkrpo9or.fsf@gitster.g/
as undesirable because tests might potentially succeed due to bugs in
the diff machinery when they should not succeed, and those bugs could
therefore hide regressions that the tests try to prevent.
By the time Git for Windows' `mingw-test-cmp` in C was finally
contributed to the Git mailing list, reviewers agreed that the diff
machinery had matured enough and should be used instead.
When the concern was raised that the diff machinery, due to its
complexity, would perform substantially worse than the test helper
originally implemented in the Git for Windows project, a test
demonstrated that these performance differences are well lost within the
100+ minutes it takes to run Git's test suite on Windows.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In b3b1a21d1a (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>
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>
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>
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>
The return type of both `utf8_strwidth()` and `utf8_strnwidth()` is
`int`, but we operate on string lengths which are typically of type
`size_t`. This means that when the string is longer than `INT_MAX`, we
will overflow and thus return a negative result.
This can lead to an out-of-bounds write with `--pretty=format:%<1)%B`
and a commit message that is 2^31+1 bytes long:
=================================================================
==26009==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x603000001168 at pc 0x7f95c4e5f427 bp 0x7ffd8541c900 sp 0x7ffd8541c0a8
WRITE of size 2147483649 at 0x603000001168 thread T0
#0 0x7f95c4e5f426 in __interceptor_memcpy /usr/src/debug/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:827
#1 0x5612bbb1068c in format_and_pad_commit pretty.c:1763
#2 0x5612bbb1087a in format_commit_item pretty.c:1801
#3 0x5612bbc33bab in strbuf_expand strbuf.c:429
#4 0x5612bbb110e7 in repo_format_commit_message pretty.c:1869
#5 0x5612bbb12d96 in pretty_print_commit pretty.c:2161
#6 0x5612bba0a4d5 in show_log log-tree.c:781
#7 0x5612bba0d6c7 in log_tree_commit log-tree.c:1117
#8 0x5612bb691ed5 in cmd_log_walk_no_free builtin/log.c:508
#9 0x5612bb69235b in cmd_log_walk builtin/log.c:549
#10 0x5612bb6951a2 in cmd_log builtin/log.c:883
#11 0x5612bb56c993 in run_builtin git.c:466
#12 0x5612bb56d397 in handle_builtin git.c:721
#13 0x5612bb56db07 in run_argv git.c:788
#14 0x5612bb56e8a7 in cmd_main git.c:923
#15 0x5612bb803682 in main common-main.c:57
#16 0x7f95c4c3c28f (/usr/lib/libc.so.6+0x2328f)
#17 0x7f95c4c3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#18 0x5612bb5680e4 in _start ../sysdeps/x86_64/start.S:115
0x603000001168 is located 0 bytes to the right of 24-byte region [0x603000001150,0x603000001168)
allocated by thread T0 here:
#0 0x7f95c4ebe7ea in __interceptor_realloc /usr/src/debug/gcc/libsanitizer/asan/asan_malloc_linux.cpp:85
#1 0x5612bbcdd556 in xrealloc wrapper.c:136
#2 0x5612bbc310a3 in strbuf_grow strbuf.c:99
#3 0x5612bbc32acd in strbuf_add strbuf.c:298
#4 0x5612bbc33aec in strbuf_expand strbuf.c:418
#5 0x5612bbb110e7 in repo_format_commit_message pretty.c:1869
#6 0x5612bbb12d96 in pretty_print_commit pretty.c:2161
#7 0x5612bba0a4d5 in show_log log-tree.c:781
#8 0x5612bba0d6c7 in log_tree_commit log-tree.c:1117
#9 0x5612bb691ed5 in cmd_log_walk_no_free builtin/log.c:508
#10 0x5612bb69235b in cmd_log_walk builtin/log.c:549
#11 0x5612bb6951a2 in cmd_log builtin/log.c:883
#12 0x5612bb56c993 in run_builtin git.c:466
#13 0x5612bb56d397 in handle_builtin git.c:721
#14 0x5612bb56db07 in run_argv git.c:788
#15 0x5612bb56e8a7 in cmd_main git.c:923
#16 0x5612bb803682 in main common-main.c:57
#17 0x7f95c4c3c28f (/usr/lib/libc.so.6+0x2328f)
SUMMARY: AddressSanitizer: heap-buffer-overflow /usr/src/debug/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:827 in __interceptor_memcpy
Shadow bytes around the buggy address:
0x0c067fff81d0: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
0x0c067fff81e0: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
0x0c067fff81f0: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
0x0c067fff8200: fd fd fd fa fa fa fd fd fd fd fa fa 00 00 00 fa
0x0c067fff8210: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
=>0x0c067fff8220: fd fa fa fa fd fd fd fa fa fa 00 00 00[fa]fa fa
0x0c067fff8230: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff8240: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff8250: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff8260: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff8270: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==26009==ABORTING
Now the proper fix for this would be to convert both functions to return
an `size_t` instead of an `int`. But given that this commit may be part
of a security release, let's instead do the minimal viable fix and die
in case we see an overflow.
Add a test that would have previously caused us to crash.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `utf8_strnwidth()` function calls `utf8_width()` in a loop and adds
its returned width to the end result. `utf8_width()` can return `-1`
though in case it reads a control character, which means that the
computed string width is going to be wrong. In the worst case where
there are more control characters than non-control characters, we may
even return a negative string width.
Fix this bug by treating control characters as having zero width.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `%w(width,indent1,indent2)` formatting directive can be used to
rewrap text to a specific width and is designed after git-shortlog(1)'s
`-w` parameter. While the three parameters are all stored as `size_t`
internally, `strbuf_add_wrapped_text()` accepts integers as input. As a
result, the casted integers may overflow. As these now-negative integers
are later on passed to `strbuf_addchars()`, we will ultimately run into
implementation-defined behaviour due to casting a negative number back
to `size_t` again. On my platform, this results in trying to allocate
9000 petabyte of memory.
Fix this overflow by using `cast_size_t_to_int()` so that we reject
inputs that cannot be represented as an integer.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a formatting directive has a `+` or ` ` after the `%`, then we add
either a line feed or space if the placeholder expands to a non-empty
string. In specific cases though this logic doesn't work as expected,
and we try to add the character even in the case where the formatting
directive is empty.
One such pattern is `%w(1)%+d%+w(2)`. `%+d` expands to reference names
pointing to a certain commit, like in `git log --decorate`. For a tagged
commit this would for example expand to `\n (tag: v1.0.0)`, which has a
leading newline due to the `+` modifier and a space added by `%d`. Now
the second wrapping directive will cause us to rewrap the text to
`\n(tag:\nv1.0.0)`, which is one byte shorter due to the missing leading
space. The code that handles the `+` magic now notices that the length
has changed and will thus try to insert a leading line feed at the
original posititon. But as the string was shortened, the original
position is past the buffer's boundary and thus we die with an error.
Now there are two issues here:
1. We check whether the buffer length has changed, not whether it
has been extended. This causes us to try and add the character
past the string boundary.
2. The current logic does not make any sense whatsoever. When the
string got expanded due to the rewrap, putting the separator into
the original position is likely to put it somewhere into the
middle of the rewrapped contents.
It is debatable whether `%+w()` makes any sense in the first place.
Strictly speaking, the placeholder never expands to a non-empty string,
and consequentially we shouldn't ever accept this combination. We thus
fix the bug by simply refusing `%+w()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An out-of-bounds read can be triggered when parsing an incomplete
padding format string passed via `--pretty=format` or in Git archives
when files are marked with the `export-subst` gitattribute.
This bug exists since we have introduced support for truncating output
via the `trunc` keyword a7f01c6b4d (pretty: support truncating in %>, %<
and %><, 2013-04-19). Before this commit, we used to find the end of the
formatting string by using strchr(3P). This function returns a `NULL`
pointer in case the character in question wasn't found. The subsequent
check whether any character was found thus simply checked the returned
pointer. After the commit we switched to strcspn(3P) though, which only
returns the offset to the first found character or to the trailing NUL
byte. As the end pointer is now computed by adding the offset to the
start pointer it won't be `NULL` anymore, and as a consequence the check
doesn't do anything anymore.
The out-of-bounds data that is being read can in fact end up in the
formatted string. As a consequence, it is possible to leak memory
contents either by calling git-log(1) or via git-archive(1) when any of
the archived files is marked with the `export-subst` gitattribute.
==10888==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000000398 at pc 0x7f0356047cb2 bp 0x7fff3ffb95d0 sp 0x7fff3ffb8d78
READ of size 1 at 0x602000000398 thread T0
#0 0x7f0356047cb1 in __interceptor_strchrnul /usr/src/debug/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:725
#1 0x563b7cec9a43 in strbuf_expand strbuf.c:417
#2 0x563b7cda7060 in repo_format_commit_message pretty.c:1869
#3 0x563b7cda8d0f in pretty_print_commit pretty.c:2161
#4 0x563b7cca04c8 in show_log log-tree.c:781
#5 0x563b7cca36ba in log_tree_commit log-tree.c:1117
#6 0x563b7c927ed5 in cmd_log_walk_no_free builtin/log.c:508
#7 0x563b7c92835b in cmd_log_walk builtin/log.c:549
#8 0x563b7c92b1a2 in cmd_log builtin/log.c:883
#9 0x563b7c802993 in run_builtin git.c:466
#10 0x563b7c803397 in handle_builtin git.c:721
#11 0x563b7c803b07 in run_argv git.c:788
#12 0x563b7c8048a7 in cmd_main git.c:923
#13 0x563b7ca99682 in main common-main.c:57
#14 0x7f0355e3c28f (/usr/lib/libc.so.6+0x2328f)
#15 0x7f0355e3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#16 0x563b7c7fe0e4 in _start ../sysdeps/x86_64/start.S:115
0x602000000398 is located 0 bytes to the right of 8-byte region [0x602000000390,0x602000000398)
allocated by thread T0 here:
#0 0x7f0356072faa in __interceptor_strdup /usr/src/debug/gcc/libsanitizer/asan/asan_interceptors.cpp:439
#1 0x563b7cf7317c in xstrdup wrapper.c:39
#2 0x563b7cd9a06a in save_user_format pretty.c:40
#3 0x563b7cd9b3e5 in get_commit_format pretty.c:173
#4 0x563b7ce54ea0 in handle_revision_opt revision.c:2456
#5 0x563b7ce597c9 in setup_revisions revision.c:2850
#6 0x563b7c9269e0 in cmd_log_init_finish builtin/log.c:269
#7 0x563b7c927362 in cmd_log_init builtin/log.c:348
#8 0x563b7c92b193 in cmd_log builtin/log.c:882
#9 0x563b7c802993 in run_builtin git.c:466
#10 0x563b7c803397 in handle_builtin git.c:721
#11 0x563b7c803b07 in run_argv git.c:788
#12 0x563b7c8048a7 in cmd_main git.c:923
#13 0x563b7ca99682 in main common-main.c:57
#14 0x7f0355e3c28f (/usr/lib/libc.so.6+0x2328f)
#15 0x7f0355e3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#16 0x563b7c7fe0e4 in _start ../sysdeps/x86_64/start.S:115
SUMMARY: AddressSanitizer: heap-buffer-overflow /usr/src/debug/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:725 in __interceptor_strchrnul
Shadow bytes around the buggy address:
0x0c047fff8020: fa fa fd fd fa fa 00 06 fa fa 05 fa fa fa fd fd
0x0c047fff8030: fa fa 00 02 fa fa 06 fa fa fa 05 fa fa fa fd fd
0x0c047fff8040: fa fa 00 07 fa fa 03 fa fa fa fd fd fa fa 00 00
0x0c047fff8050: fa fa 00 01 fa fa fd fd fa fa 00 00 fa fa 00 01
0x0c047fff8060: fa fa 00 06 fa fa 00 06 fa fa 05 fa fa fa 05 fa
=>0x0c047fff8070: fa fa 00[fa]fa fa fd fa fa fa fd fd fa fa fd fd
0x0c047fff8080: fa fa fd fd fa fa 00 00 fa fa 00 fa fa fa fd fa
0x0c047fff8090: fa fa fd fd fa fa 00 00 fa fa fa fa fa fa fa fa
0x0c047fff80a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff80b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff80c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==10888==ABORTING
Fix this bug by checking whether `end` points at the trailing NUL byte.
Add a test which catches this out-of-bounds read and which demonstrates
that we used to write out-of-bounds data into the formatted message.
Reported-by: Markus Vervier <markus.vervier@x41-dsec.de>
Original-patch-by: Markus Vervier <markus.vervier@x41-dsec.de>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With the `%>>(<N>)` pretty formatter, you can ask git-log(1) et al to
steal spaces. To do so we need to look ahead of the next token to see
whether there are spaces there. This loop takes into account ANSI
sequences that end with an `m`, and if it finds any it will skip them
until it finds the first space. While doing so it does not take into
account the buffer's limits though and easily does an out-of-bounds
read.
Add a test that hits this behaviour. While we don't have an easy way to
verify this, the test causes the following failure when run with
`SANITIZE=address`:
==37941==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x603000000baf at pc 0x55ba6f88e0d0 bp 0x7ffc84c50d20 sp 0x7ffc84c50d10
READ of size 1 at 0x603000000baf thread T0
#0 0x55ba6f88e0cf in format_and_pad_commit pretty.c:1712
#1 0x55ba6f88e7b4 in format_commit_item pretty.c:1801
#2 0x55ba6f9b1ae4 in strbuf_expand strbuf.c:429
#3 0x55ba6f88f020 in repo_format_commit_message pretty.c:1869
#4 0x55ba6f890ccf in pretty_print_commit pretty.c:2161
#5 0x55ba6f7884c8 in show_log log-tree.c:781
#6 0x55ba6f78b6ba in log_tree_commit log-tree.c:1117
#7 0x55ba6f40fed5 in cmd_log_walk_no_free builtin/log.c:508
#8 0x55ba6f41035b in cmd_log_walk builtin/log.c:549
#9 0x55ba6f4131a2 in cmd_log builtin/log.c:883
#10 0x55ba6f2ea993 in run_builtin git.c:466
#11 0x55ba6f2eb397 in handle_builtin git.c:721
#12 0x55ba6f2ebb07 in run_argv git.c:788
#13 0x55ba6f2ec8a7 in cmd_main git.c:923
#14 0x55ba6f581682 in main common-main.c:57
#15 0x7f2d08c3c28f (/usr/lib/libc.so.6+0x2328f)
#16 0x7f2d08c3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#17 0x55ba6f2e60e4 in _start ../sysdeps/x86_64/start.S:115
0x603000000baf is located 1 bytes to the left of 24-byte region [0x603000000bb0,0x603000000bc8)
allocated by thread T0 here:
#0 0x7f2d08ebe7ea in __interceptor_realloc /usr/src/debug/gcc/libsanitizer/asan/asan_malloc_linux.cpp:85
#1 0x55ba6fa5b494 in xrealloc wrapper.c:136
#2 0x55ba6f9aefdc in strbuf_grow strbuf.c:99
#3 0x55ba6f9b0a06 in strbuf_add strbuf.c:298
#4 0x55ba6f9b1a25 in strbuf_expand strbuf.c:418
#5 0x55ba6f88f020 in repo_format_commit_message pretty.c:1869
#6 0x55ba6f890ccf in pretty_print_commit pretty.c:2161
#7 0x55ba6f7884c8 in show_log log-tree.c:781
#8 0x55ba6f78b6ba in log_tree_commit log-tree.c:1117
#9 0x55ba6f40fed5 in cmd_log_walk_no_free builtin/log.c:508
#10 0x55ba6f41035b in cmd_log_walk builtin/log.c:549
#11 0x55ba6f4131a2 in cmd_log builtin/log.c:883
#12 0x55ba6f2ea993 in run_builtin git.c:466
#13 0x55ba6f2eb397 in handle_builtin git.c:721
#14 0x55ba6f2ebb07 in run_argv git.c:788
#15 0x55ba6f2ec8a7 in cmd_main git.c:923
#16 0x55ba6f581682 in main common-main.c:57
#17 0x7f2d08c3c28f (/usr/lib/libc.so.6+0x2328f)
#18 0x7f2d08c3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#19 0x55ba6f2e60e4 in _start ../sysdeps/x86_64/start.S:115
SUMMARY: AddressSanitizer: heap-buffer-overflow pretty.c:1712 in format_and_pad_commit
Shadow bytes around the buggy address:
0x0c067fff8120: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
0x0c067fff8130: fd fd fa fa fd fd fd fd fa fa fd fd fd fa fa fa
0x0c067fff8140: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
0x0c067fff8150: fa fa fd fd fd fd fa fa 00 00 00 fa fa fa fd fd
0x0c067fff8160: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
=>0x0c067fff8170: fd fd fd fa fa[fa]00 00 00 fa fa fa 00 00 00 fa
0x0c067fff8180: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff8190: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff81a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff81b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff81c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Luckily enough, this would only cause us to copy the out-of-bounds data
into the formatted commit in case we really had an ANSI sequence
preceding our buffer. So this bug likely has no security consequences.
Fix it regardless by not traversing past the buffer's start.
Reported-by: Patrick Steinhardt <ps@pks.im>
Reported-by: Eric Sesterhenn <eric.sesterhenn@x41-dsec.de>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When using a padding specifier in the pretty format passed to git-log(1)
we need to calculate the string length in several places. These string
lengths are stored in `int`s though, which means that these can easily
overflow when the input lengths exceeds 2GB. This can ultimately lead to
an out-of-bounds write when these are used in a call to memcpy(3P):
==8340==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7f1ec62f97fe at pc 0x7f2127e5f427 bp 0x7ffd3bd63de0 sp 0x7ffd3bd63588
WRITE of size 1 at 0x7f1ec62f97fe thread T0
#0 0x7f2127e5f426 in __interceptor_memcpy /usr/src/debug/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:827
#1 0x5628e96aa605 in format_and_pad_commit pretty.c:1762
#2 0x5628e96aa7f4 in format_commit_item pretty.c:1801
#3 0x5628e97cdb24 in strbuf_expand strbuf.c:429
#4 0x5628e96ab060 in repo_format_commit_message pretty.c:1869
#5 0x5628e96acd0f in pretty_print_commit pretty.c:2161
#6 0x5628e95a44c8 in show_log log-tree.c:781
#7 0x5628e95a76ba in log_tree_commit log-tree.c:1117
#8 0x5628e922bed5 in cmd_log_walk_no_free builtin/log.c:508
#9 0x5628e922c35b in cmd_log_walk builtin/log.c:549
#10 0x5628e922f1a2 in cmd_log builtin/log.c:883
#11 0x5628e9106993 in run_builtin git.c:466
#12 0x5628e9107397 in handle_builtin git.c:721
#13 0x5628e9107b07 in run_argv git.c:788
#14 0x5628e91088a7 in cmd_main git.c:923
#15 0x5628e939d682 in main common-main.c:57
#16 0x7f2127c3c28f (/usr/lib/libc.so.6+0x2328f)
#17 0x7f2127c3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#18 0x5628e91020e4 in _start ../sysdeps/x86_64/start.S:115
0x7f1ec62f97fe is located 2 bytes to the left of 4831838265-byte region [0x7f1ec62f9800,0x7f1fe62f9839)
allocated by thread T0 here:
#0 0x7f2127ebe7ea in __interceptor_realloc /usr/src/debug/gcc/libsanitizer/asan/asan_malloc_linux.cpp:85
#1 0x5628e98774d4 in xrealloc wrapper.c:136
#2 0x5628e97cb01c in strbuf_grow strbuf.c:99
#3 0x5628e97ccd42 in strbuf_addchars strbuf.c:327
#4 0x5628e96aa55c in format_and_pad_commit pretty.c:1761
#5 0x5628e96aa7f4 in format_commit_item pretty.c:1801
#6 0x5628e97cdb24 in strbuf_expand strbuf.c:429
#7 0x5628e96ab060 in repo_format_commit_message pretty.c:1869
#8 0x5628e96acd0f in pretty_print_commit pretty.c:2161
#9 0x5628e95a44c8 in show_log log-tree.c:781
#10 0x5628e95a76ba in log_tree_commit log-tree.c:1117
#11 0x5628e922bed5 in cmd_log_walk_no_free builtin/log.c:508
#12 0x5628e922c35b in cmd_log_walk builtin/log.c:549
#13 0x5628e922f1a2 in cmd_log builtin/log.c:883
#14 0x5628e9106993 in run_builtin git.c:466
#15 0x5628e9107397 in handle_builtin git.c:721
#16 0x5628e9107b07 in run_argv git.c:788
#17 0x5628e91088a7 in cmd_main git.c:923
#18 0x5628e939d682 in main common-main.c:57
#19 0x7f2127c3c28f (/usr/lib/libc.so.6+0x2328f)
#20 0x7f2127c3c349 in __libc_start_main (/usr/lib/libc.so.6+0x23349)
#21 0x5628e91020e4 in _start ../sysdeps/x86_64/start.S:115
SUMMARY: AddressSanitizer: heap-buffer-overflow /usr/src/debug/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:827 in __interceptor_memcpy
Shadow bytes around the buggy address:
0x0fe458c572a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0fe458c572b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0fe458c572c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0fe458c572d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0fe458c572e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0fe458c572f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa[fa]
0x0fe458c57300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0fe458c57310: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0fe458c57320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0fe458c57330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0fe458c57340: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==8340==ABORTING
The pretty format can also be used in `git archive` operations via the
`export-subst` attribute. So this is what in our opinion makes this a
critical issue in the context of Git forges which allow to download an
archive of user supplied Git repositories.
Fix this vulnerability by using `size_t` instead of `int` to track the
string lengths. Add tests which detect this vulnerability when Git is
compiled with the address sanitizer.
Reported-by: Joern Schneeweisz <jschneeweisz@gitlab.com>
Original-patch-by: Joern Schneeweisz <jschneeweisz@gitlab.com>
Modified-by: Taylor Blau <me@ttalorr.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow tests that assume a 64-bit `size_t` to be skipped in 32-bit
platforms and regardless of the size of `long`.
This imitates the `LONG_IS_64BIT` prerequisite.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t1509-root-work-tree.sh, which tests behavior of a Git repository
located at the root `/` directory, refuses to run if it detects the
presence of an existing repository at `/`. This safeguard ensures that
it won't clobber a legitimate repository at that location. However,
because t1509 does a poor job of cleaning up after itself, it runs afoul
of its own safety check on subsequent runs, which makes it painful to
run the script repeatedly since each run requires manual cleanup of
detritus from the previous run.
Address this shortcoming by making t1509 clean up after itself as its
last action. This is safe since the script can only make it to this
cleanup action if it did not find a legitimate repository at `/` in the
first place, so the resources cleaned up here can only have been created
by the script itself.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
One of the t1509 setup tests is very particular about the output it
expects from `git init`, and fails if the output differs even slightly
which can happen easily if the script is run multiple times since it
doesn't do a good job of cleaning up after itself (i.e. it leaves
detritus in the root directory `/`). One bit of cruft in particular
(`/HEAD`) makes the test fail since its presence causes `git init` to
alter its output; rather than reporting "Initialized empty Git
repository", it instead reports "Reinitialized existing Git repository"
when `/HEAD` is present. Address this problem by making the test do a
more careful job of crafting its intended initial state.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
When 8959555cee (setup_git_directory(): add an owner check for the
top-level directory, 2022-03-02) tightened security surrounding
directory ownership, it neglected to adjust t1509-root-work-tree.sh to
take the new restriction into account. As a result, since the root
directory `/` is typically not owned by the user running the test
(indeed, t1509 refuses to run as `root`), the ownership check added
by 8959555cee kicks in and causes the test to fail:
fatal: detected dubious ownership in repository at '/'
To add an exception for this directory, call:
git config --global --add safe.directory /
This problem went unnoticed for so long because t1509 is rarely run
since it requires setting up a `chroot` environment or a sacrificial
virtual machine in which `/` can be made writable and polluted by any
user.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
grep(1) converts CRLF line endings to LF on current MinGW:
$ uname -sr
MINGW64_NT-10.0-22621 3.3.6-341.x86_64
$ printf 'a\r\n' | hexdump.exe -C
00000000 61 0d 0a |a..|
00000003
$ printf 'a\r\n' | grep . | hexdump.exe -C
00000000 61 0a |a.|
00000002
Create the intended test file by grepping the original file with LF
line endings and adding CRs explicitly.
The missing CRs went unnoticed because test_cmp on MinGW ignores line
endings since 4d715ac05c (Windows: a test_cmp that is agnostic to random
LF <> CRLF conversions, 2013-10-26). Fix this test anyway to avoid
depending on that special test_cmp behavior, especially since this is
the only test that needs it.
Piping the output of grep(1) through append_cr has the side-effect of
ignoring its return value. That means we no longer need the explicit
"|| true" to support commit messages without a body.
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In Git for Windows, when passing paths from shell scripts to regular
Win32 executables, thanks to the MSYS2 runtime a somewhat magic path
conversion happens that lets the shell script think that there is a file
at `/git/Makefile` and the Win32 process it spawned thinks that the
shell script said `C:/git-sdk-64/git/Makefile` instead.
This conversion is documented in detail over here:
https://www.msys2.org/docs/filesystem-paths/#automatic-unix-windows-path-conversion
As all automatic conversions, there are gaps. For example, to avoid
mistaking command-line options like `/LOG=log.txt` (which are quite
common in the Windows world) from being mistaken for a Unix-style
absolute path, the MSYS2 runtime specifically exempts arguments
containing a `=` character from that conversion.
We are about to change `test_cmp` to use `git diff --no-index`, which
involves spawning precisely such a Win32 process.
In combination, this would cause a failure in `t0021-conversion.sh`
where we pass an absolute path containing an equal character to the
`test_cmp` function.
Seeing as the Unix tools like `cp` and `diff` that are used by Git's
test suite in the Git for Windows SDK (thanks to the MSYS2 project)
understand both Unix-style as well as Windows-style paths, we can stave
off this problem by simply switching to Windows-style paths and
side-stepping the need for any automatic path conversion.
Note: The `PATH` variable is obviously special, as it is colon-separated
in the MSYS2 Bash used by Git for Windows, and therefore _cannot_
contain absolute Windows-style paths, lest the colon after the drive
letter is mistaken for a path separator. Therefore, we need to be
careful to keep the Unix-style when modifying the `PATH` variable.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Similar as with the preceding commit, start ignoring gitattributes files
that are overly large to protect us against out-of-bounds reads and
writes caused by integer overflows. Unfortunately, we cannot just define
"overly large" in terms of any preexisting limits in the codebase.
Instead, we choose a very conservative limit of 100MB. This is plenty of
room for specifying gitattributes, and incidentally it is also the limit
for blob sizes for GitHub. While we don't want GitHub to dictate limits
here, it is still sensible to use this fact for an informed decision
given that it is hosting a huge set of repositories. Furthermore, over
at GitLab we scanned a subset of repositories for their root-level
attribute files. We found that 80% of them have a gitattributes file
smaller than 100kB, 99.99% have one smaller than 1MB, and only a single
repository had one that was almost 3MB in size. So enforcing a limit of
100MB seems to give us ample of headroom.
With this limit in place we can be reasonably sure that there is no easy
way to exploit the gitattributes file via integer overflows anymore.
Furthermore, it protects us against resource exhaustion caused by
allocating the in-memory data structures required to represent the
parsed attributes.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are two different code paths to read gitattributes: once via a
file, and once via the index. These two paths used to behave differently
because when reading attributes from a file, we used fgets(3P) with a
buffer size of 2kB. Consequentially, we silently truncate line lengths
when lines are longer than that and will then parse the remainder of the
line as a new pattern. It goes without saying that this is entirely
unexpected, but it's even worse that the behaviour depends on how the
gitattributes are parsed.
While this is simply wrong, the silent truncation saves us with the
recently discovered vulnerabilities that can cause out-of-bound writes
or reads with unreasonably long lines due to integer overflows. As the
common path is to read gitattributes via the worktree file instead of
via the index, we can assume that any gitattributes file that had lines
longer than that is already broken anyway. So instead of lifting the
limit here, we can double down on it to fix the vulnerabilities.
Introduce an explicit line length limit of 2kB that is shared across all
paths that read attributes and ignore any line that hits this limit
while printing a warning.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When reading attributes from a file we use fgets(3P) with a buffer size
of 2048 bytes. This means that as soon as a line exceeds the buffer size
we split it up into multiple parts and parse each of them as a separate
pattern line. This is of course not what the user intended, and even
worse the behaviour is inconsistent with how we read attributes from the
index.
Fix this bug by converting the code to use `strbuf_getline()` instead.
This will indeed read in the whole line, which may theoretically lead to
an out-of-memory situation when the gitattributes file is huge. We're
about to reject any gitattributes files larger than 100MB in the next
commit though, which makes this less of a concern.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It is customary to write `A || true` to ignore a potential error exit of
command A. But when we have a sequence `A && B && C || true && D`, then
a failure of any of A, B, or C skips to D right away. This is not
intended here. Turn the command whose failure is to be ignored into a
compound command to ensure it is the only one that is allowed to fail.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change a "git diff-tree" command to be &&-chained so that we won't
ignore its exit code, see the ea05fd5fbf (Merge branch
'ab/keep-git-exit-codes-in-tests', 2022-03-16) topic for prior art.
This fixes code added in b45563a229 (rename: Break filepairs with
different types., 2007-11-30). Due to hiding the exit code we hid a
memory leak under SANITIZE=leak.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change the verify_mergeheads() helper the check the exit code of "git
rev-parse".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Amend the test added in [1] to check the exit code of the "git"
invocations. An in-flight change[2] introduced a memory leak in these
invocations, which went undetected unless we were running under
"GIT_TEST_SANITIZE_LEAK_LOG=true".
Note that the in-flight change made 8 test files fail, but as far as I
can tell only this one would have had its exit code hidden unless
under "GIT_TEST_SANITIZE_LEAK_LOG=true". The rest would be caught
without it.
We could pick other variable names here than "ln%d", e.g. "commit",
"dummy_blob" and "file_blob", but having the "rev-parse" invocations
aligned makes the difference between them more readable, so let's pick
"ln%d".
1. 4cf2143e02 (pack-objects: break delta cycles before delta-search
phase, 2016-08-11)
2. https://lore.kernel.org/git/221128.868rjvmi3l.gmgdl@evledraar.gmail.com/
3. faececa53f (test-lib: have the "check" mode for SANITIZE=leak
consider leak logs, 2022-07-28)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Only abort the individual check instead of exiting the whole test script
if git show fails. Noticed with GIT_TEST_PASSING_SANITIZE_LEAK=check.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`git status` can be slow when there are a large number of
untracked files and directories since Git must search the entire
worktree to enumerate them. When it is too slow, Git prints
advice with the elapsed search time and a suggestion to disable
the search using the `-uno` option. This suggestion also carries
a warning that might scare off some users.
However, these days, `-uno` isn't the only option. Git can reduce
the time taken to enumerate untracked files by caching results from
previous `git status` invocations, when the `core.untrackedCache`
and `core.fsmonitor` features are enabled.
Update the `git status` man page to explain these configuration
options, and update the advice to provide more detail about the
current configuration and to refer to the updated documentation.
Signed-off-by: Rudy Rigot <rudy.rigot@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 5cb28270a1 (pack-objects: lazily set up "struct rev_info", don't
leak, 2022-03-28) --filter options given to git pack-objects overrule
earlier ones, letting only the leftmost win and leaking the memory
allocated for earlier ones. Fix that by only initializing the rev_info
struct once.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git pack-objects should accept multiple --filter options as documented
in Documentation/rev-list-options.txt, but currently the last one wins.
Show that using tests with multiple blob size limits
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
fb2d0db502 (test-lib-functions: add parsing helpers for ls-files and
ls-tree, 2022-04-04) not only started to use helper functions, it also
started to pipe the output of git ls-files into them directly, without
using a temporary file. No explanation was given. This causes the
return code of that git command to be ignored.
Revert that part of the change, use temporary files and check the return
code of git ls-files again.
Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When GIT_COMPLETION_IGNORE_CASE is set, also allow lowercase completion
text like "head" to match uppercase HEAD and other pseudorefs.
Signed-off-by: Alison Winters <alisonatwork@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If GIT_COMPLETION_IGNORE_CASE is set, --ignore-case will be added to
git for-each-ref calls so that refs can be matched case insensitively,
even when running on case sensitive filesystems.
Signed-off-by: Alison Winters <alisonatwork@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The format of a line in /proc/cpuinfo that describes a CPU on s390x
looked different from everybody else, and the code in chainlint.pl
failed to parse it.
* ah/chainlint-cpuinfo-parse-fix:
chainlint.pl: fix /proc/cpuinfo regexp
Resolve symbolic links when processing the locations of alternate
object stores, since failing to do so can lead to confusing and buggy
behavior.
* gc/resolve-alternate-symlinks:
object-file: use real paths when adding alternates
Add one more candidate directory that may house httpd modules while
running tests.
* es/locate-httpd-module-location-in-test:
lib-httpd: extend module location auto-detection
"git prune" may try to iterate over .git/objects/pack for trash
files to remove in it, and loudly fail when the directory is
missing, which is not necessary. The command has been taught to
ignore such a failure.
* ew/prune-with-missing-objects-pack:
prune: quiet ENOENT on missing directories
Assorted fixes of parsing end-user input as integers.
* pw/config-int-parse-fixes:
git_parse_signed(): avoid integer overflow
config: require at least one digit when parsing numbers
git_parse_unsigned: reject negative values
`parse_object()` hardening when checking for the existence of a
suspected blob object.
* jk/parse-object-type-mismatch:
parse_object(): simplify blob conditional
parse_object(): check on-disk type of suspected blob
parse_object(): drop extra "has" check before checking object type
The handling to die early when there is no EDITOR is valuable when
used in normal code (i.e., editor.c). In git-var, where
null/empty-string is a perfectly valid value to return, it doesn't
make as much sense.
Remove this handling from `git var GIT_EDITOR` so that it does not
fail so noisily when there is no defined editor.
Signed-off-by: Sean Allred <allred.sean@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When adding an alternate ODB, we check if the alternate has the same
path as the object dir, and if so, we do nothing. However, that
comparison does not resolve symlinks. This makes it possible to add the
object dir as an alternate, which may result in bad behavior. For
example, it can trick "git repack -a -l -d" (possibly run by "git gc")
into thinking that all packs come from an alternate and delete all
objects.
rm -rf test &&
git clone https://github.com/git/git test &&
(
cd test &&
ln -s objects .git/alt-objects &&
# -c repack.updateserverinfo=false silences a warning about not
# being able to update "info/refs", it isn't needed to show the
# bad behavior
GIT_ALTERNATE_OBJECT_DIRECTORIES=".git/alt-objects" git \
-c repack.updateserverinfo=false repack -a -l -d &&
# It's broken!
git status
# Because there are no more objects!
ls .git/objects/pack
)
Fix this by resolving symlinks and relative paths before comparing the
alternate and object dir. This lets us clean up a number of issues noted
in 37a95862c6 (alternates: re-allow relative paths from environment,
2016-11-07):
- Now that we compare the real paths, duplicate detection is no longer
foiled by relative paths.
- Using strbuf_realpath() allows us to "normalize" paths that
strbuf_normalize_path() can't, so we can stop silently ignoring errors
when "normalizing" paths from the environment.
- We now store an absolute path based on getcwd() (the "future
direction" named in 37a95862c6), so chdir()-ing in the process no
longer changes the directory pointed to by the alternate. This is a
change in behavior, but a desirable one.
Signed-off-by: Glen Choo <chooglen@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 81071626ba (trace2: add global counter mechanism, 2022-10-24)
these tests have been failing when git is compiled with NO_PTHREADS=Y,
which is always the case e.g. if 'uname -s' is "NONSTOP_KERNEL".
Reported-by: Randall S. Becker <randall.becker@nexbridge.ca>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git receive-pack" used to use all the local refs as the boundary for
checking connectivity of the data "git push" sent, but now it uses
only the refs that it advertised to the pusher. In a repository with
the .hideRefs configuration, this reduces the resources needed to
perform the check.
cf. <221028.86bkpw805n.gmgdl@evledraar.gmail.com>
cf. <xmqqr0yrizqm.fsf@gitster.g>
* ps/receive-use-only-advertised:
receive-pack: only use visible refs for connectivity check
rev-parse: add `--exclude-hidden=` option
revision: add new parameter to exclude hidden refs
revision: introduce struct to handle exclusions
revision: move together exclusion-related functions
refs: get rid of global list of hidden refs
refs: fix memory leak when parsing hideRefs config
Teach chainlint.pl to show corresponding line numbers when printing
the source of a test.
* es/chainlint-lineno:
chainlint: prefix annotated test definition with line numbers
chainlint: latch line numbers at which each token starts and ends
chainlint: sidestep impoverished macOS "terminfo"
Fix a source of flakiness in CI when compiling with SANITIZE=leak.
* ab/t7610-timeout:
t7610: use "file:///dev/null", not "/dev/null", fixes MinGW
t7610: fix flaky timeout issue, don't clone from example.com
'git maintenance register' is taught to write configuration to an
arbitrary path, and 'git for-each-repo' is taught to expand tilde
characters in paths.
* rp/maintenance-qol:
builtin/gc.c: fix use-after-free in maintenance_unregister()
maintenance --unregister: fix uninit'd data use & -Wdeclaration-after-statement
maintenance: add option to register in a specific config
for-each-repo: interpolate repo path arguments
Correct an error where `git rebase` would mistakenly use a branch or
tag named "refs/rewritten/xyz" when missing a rebase label.
* pw/strict-label-lookups:
sequencer: tighten label lookups
sequencer: unify label lookup
Redact headers from cURL's h2h3 module in GIT_CURL_VERBOSE and
others.
* gc/redact-h2h3-headers:
http: redact curl h2h3 headers in info
t: run t5551 tests with both HTTP and HTTP/2
Teach chainlint.pl to annotate the original test definition instead
of the token stream.
* es/chainlint-output:
chainlint: annotate original test definition rather than token stream
chainlint: latch start/end position of each token
chainlint: tighten accuracy when consuming input stream
chainlint: add explanatory comments
'scalar reconfigure -a' is taught to automatically remove
scalar.repo entires which no longer exist.
* js/remove-stale-scalar-repos:
tests(scalar): tighten the stale `scalar.repo` test some
scalar reconfigure -a: remove stale `scalar.repo` entries
Fix a regression in the bisect-helper which mistakenly treats
arguments to the command given to 'git bisect run' as arguments to
the helper.
* dd/bisect-helper-subcommand:
bisect--helper: parse subcommand with OPT_SUBCOMMAND
bisect--helper: move all subcommands into their own functions
bisect--helper: remove unused options
Preparation to remove git-submodule.sh and replace it with a builtin.
* ab/submodule-helper-prep-only:
submodule--helper: use OPT_SUBCOMMAND() API
submodule--helper: drop "update --prefix <pfx>" for "-C <pfx> update"
submodule--helper: remove --prefix from "absorbgitdirs"
submodule API & "absorbgitdirs": remove "----recursive" option
submodule.c: refactor recursive block out of absorb function
submodule tests: test for a "foreach" blind-spot
submodule--helper: fix a memory leak in "status"
submodule tests: add tests for top-level flag output
submodule--helper: move "config" to a test-tool
29fb2ec3 (chainlint.pl: validate test scripts in parallel,
2022-09-01) introduced a function that gets the number of cores from
/proc/cpuinfo on some systems, notably linux.
The regexp it uses (^processor\s*:) fails to match the desired lines in
the s390x architecture, where they look like this:
processor 0: version = FF, identification = 148F67, machine = 2964
As a result, on s390x that function returns 0 as the number of cores,
and the chainlint.pl script exits without doing anything.
Signed-off-by: Andreas Hasenack <andreas.hasenack@canonical.com>
Acked-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Although it is possible to manually set LIB_HTTPD_PATH and
LIB_HTTPD_MODULE_PATH to point at the location of `httpd` and its
modules, doing so is cumbersome and easily forgotten. To address this,
0d344738dc (t/lib-http.sh: Restructure finding of default httpd
location, 2010-01-02) enhanced lib-httpd.sh to automatically detect the
location of `httpd` and its modules in order to facilitate out-of-the-
box testing on a wider range of platforms. Follow that lead by further
enhancing it to automatically detect the `httpd` modules on Void Linux,
as well.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test case "push with config push.useBitmap" of t5516 was introduced
in commit 82f67ee13f (send-pack.c: add config push.useBitmaps,
2022-06-17). It won't work in verbose mode, e.g.:
$ sh t5516-fetch-push.sh --run='1,115' -v
This is because "git-push" will run in a tty in this case, and the
subcommand "git pack-objects" will contain an argument "--progress"
instead of "-q". Adding a specific option "--quiet" to "git push" will
get a stable result for t5516.
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
$GIT_DIR/objects/pack may be removed to save inodes in shared
repositories. Quiet down prune in cases where either
$GIT_DIR/objects or $GIT_DIR/objects/pack is non-existent,
but emit the system error in other cases to help users diagnose
permissions problems or resource constraints.
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Free memory from parse_options_concat(), which comes from code
originally added (then extended) in [1].
At this point we could get several more tests leak-free by free()-ing
the xstrdup() just above the line being changed, but that one's
trickier than it seems. The sequencer_remove_state() function
supposedly owns it, but sometimes we don't call it. I have a fix for
it, but it's non-trivial, so let's fix the easy one first.
1. c62f6ec341 (revert: add --ff option to allow fast forward when
cherry-picking, 2010-03-06)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Fix a leak in the recent 6159e7add4 (rebase --abort: improve reflog
message, 2022-10-12). Before that commit we'd strbuf_release() the
reflog message we were formatting, but when that code was refactored
to use "ropts.head_msg" the strbuf_release() was omitted.
Ideally the three users of "ropts" in cmd_rebase() should use
different "ropts" variables, in practice they're completely separate,
as this and the other user in the "switch" statement will "goto
cleanup", which won't touch "ropts".
The third caller after the "switch" is then unreachable if we take
these two branches, so all of them are getting a "{ 0 }" init'd
"ropts".
So it's OK that we're leaving a stale pointer in "ropts.head_msg",
cleaning it up was our responsibility, and it won't be used again.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
The "new_pack" we allocate in check_connected() wasn't being
free'd. Let's do that before we return from the function. This has
leaked ever since "new_pack" was added to this function in
c6807a40dc (clone: open a shortcut for connectivity check,
2013-05-26).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Fix a memory leak in overlay_tree_on_index(), we need to
clear_pathspec() at some point, which might as well be after the last
time we use it in the function.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Call graph_clear() in release_revisions(), this will free memory
allocated by e.g. this command, which will now run without memory
leaks:
git -P log -1 --graph --no-graph --graph
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Fix a leak that's been with us since 3407bb4940 (Add "unpack-file"
helper that unpacks a sha1 blob into a tmpfile., 2005-04-18). See
00c8fd493a (cat-file: use streaming API to print blobs, 2012-03-07)
for prior art which shows the same API pattern, i.e. free()-ing the
result of read_object_file() after it's used.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Fix various leaks in built-ins, libraries and a test helper here we
were missing a call to strbuf_release(), string_list_clear() etc, or
were calling them after a potential "return".
Comments on individual changes:
- builtin/checkout.c: Fix a memory leak that was introduced in [1]. A
sibling leak introduced in [2] was recently fixed in [3]. As with [3]
we should be using the wt_status_state_free_buffers() API introduced
in [4].
- builtin/repack.c: Fix a leak that's been here since this use of
"strbuf_release()" was added in a1bbc6c017 (repack: rewrite the shell
script in C, 2013-09-15). We don't use the variable for anything
except this loop, so we can instead free it right afterwards.
- builtin/rev-parse: Fix a leak that's been here since this code was
added in 21d4783538 (Add a parseopt mode to git-rev-parse to bring
parse-options to shell scripts., 2007-11-04).
- builtin/stash.c: Fix a couple of leaks that have been here since
this code was added in d4788af875 (stash: convert create to builtin,
2019-02-25), we strbuf_release()'d only some of the "struct strbuf" we
allocated earlier in the function, let's release all of them.
- ref-filter.c: Fix a leak in 482c119186 (gpg-interface: improve
interface for parsing tags, 2021-02-11), we don't use the "payload"
variable that we ask parse_signature() to populate for us, so let's
free it.
- t/helper/test-fake-ssh.c: Fix a leak that's been here since this
code was added in 3064d5a38c (mingw: fix t5601-clone.sh,
2016-01-27). Let's free the "struct strbuf" as soon as we don't need
it anymore.
1. c45f0f525d (switch: reject if some operation is in progress,
2019-03-29)
2. 2708ce62d2 (branch: sort detached HEAD based on a flag,
2021-01-07)
3. abcac2e19f (ref-filter.c: fix a leak in get_head_description,
2022-09-25)
4. 962dd7ebc3 (wt-status: introduce wt_status_state_free_buffers(),
2020-09-27).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
The "sparse_checkout_patterns" member was added to the "struct
index_state" in 836e25c51b (sparse-checkout: hold pattern list in
index, 2021-03-30), but wasn't added to discard_index(). Let's do
that.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
The read_cache() in prepare_to_commit() would end up clobbering the
pointer we had for a previously populated "the_index.cache_tree" in
the very common case of "git commit" stressed by e.g. the tests being
changed here.
We'd populate "the_index.cache_tree" by calling
"update_main_cache_tree" in prepare_index(), but would not end up with
a "fully prepared" index. What constitutes an existing index is
clearly overly fuzzy, here we'll check "active_nr" (aka
"the_index.cache_nr"), but our "the_index.cache_tree" might have been
malloc()'d already.
Thus the code added in 11c8a74a64 (commit: write cache-tree data when
writing index anyway, 2011-12-06) would end up allocating the
"cache_tree", and would interact here with code added in
7168624c35 (Do not generate full commit log message if it is not
going to be used, 2007-11-28). The result was a very common memory
leak.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
This marks tests that have been leak-free since various recent
commits, but which were not marked us such when the memory leak was
fixed. These were mostly discovered with the "check" mode added in
faececa53f (test-lib: have the "check" mode for SANITIZE=leak
consider leak logs, 2022-07-28).
Commits that fixed the last memory leak in these tests. Per narrowing
down when they started to pass under SANITIZE=leak with "bisect":
- t1022-read-tree-partial-clone.sh:
7e2619d8ff (list_objects_filter_options: plug leak of filter_spec
strings, 2022-09-08)
- t4053-diff-no-index.sh: 07a6f94a6d (diff-no-index: release prefixed
filenames, 2022-09-07)
- t6415-merge-dir-to-symlink.sh: bac92b1f39 (Merge branch
'js/ort-clean-up-after-failed-merge', 2022-08-08).
- t5554-noop-fetch-negotiator.sh:
66eede4a37 (prepare_repo_settings(): plug leak of config values,
2022-09-08)
- t2012-checkout-last.sh, t7504-commit-msg-hook.sh,
t91{15,46,60}-git-svn-*.sh: The in-flight "pw/rebase-no-reflog-action"
series, upon which this is based:
https://lore.kernel.org/git/pull.1405.git.1667575142.gitgitgadget@gmail.com/
Let's mark all of these as passing with
"TEST_PASSES_SANITIZE_LEAK=true", to have it regression tested,
including as part of the "linux-leaks" CI job.
Additionally, let's remove the "!SANITIZE_LEAK" prerequisite from
tests that now pass, these were marked as failing in:
- 77e56d55ba (diff.c: fix a double-free regression in a18d66cefb,
2022-03-17)
- c4d1d52631 (tests: change some 'test $(git) = "x"' to test_cmp,
2022-03-07)
These were not spotted with the new "check" mode, but manually, it
doesn't cover these sort of prerequisites. There's few enough that we
shouldn't bother to automate it. They'll be going away sooner than
later.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
In a preceding commit we fully applied the
"index-compatibility.pending.cocci" rule to "t/helper/*".
Let's now stop defining "USE_THE_INDEX_COMPATIBILITY_MACROS" in
test-tool.h itself, and instead instead define
"USE_THE_INDEX_VARIABLE" in the individual test helpers that need
it. This mirrors how we do the same thing in the "builtin/" directory.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
