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Jeff King 34b1a0d320 submodule: handle NULL value when parsing submodule.*.branch We record the submodule branch config value as a string, so config that uses an implicit bool like: [submodule "foo"] branch will cause us to segfault. Note that unlike most other config-parsing bugs of this class, this can be triggered by parsing a bogus .gitmodules file (which we might do after cloning a malicious repository). I don't think the security implications are important, though. It's always a strict NULL dereference, not an out-of-bounds read or write. So we should reliably kill the process. That may be annoying, but the impact is limited to the attacker preventing the victim from successfully using "git clone --recurse-submodules", etc, on the malicious repo. The "branch" entry is the only one with this problem; other strings like "path" and "url" already check for NULL. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2023-12-09 08:24:47 +09:00
.github	ci: upgrade to using macos-13	2023-11-03 18:52:02 +09:00
Documentation	Git 2.43	2023-11-20 10:28:15 +09:00
block-sha1	…
builtin	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
ci	ci: upgrade to using macos-13	2023-11-03 18:52:02 +09:00
compat	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
contrib	Merge branch 'jc/test-i18ngrep'	2023-11-08 11:04:02 +09:00
ewah	…
git-gui	…
gitk-git	…
gitweb	…
mergetools	…
negotiator	…
oss-fuzz	…
perl	…
po	Merge branch 'l10n/zh-TW/2023-11-19' of github.com:l10n-tw/git-po	2023-11-20 07:57:09 +08:00
refs	…
reftable	…
sha1	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
t	Merge branch 'tb/rev-list-unpacked-fix'	2023-11-08 15:04:42 +09:00
templates	…
trace2	trace2: handle NULL values in tr2_sysenv config callback	2023-12-09 08:24:47 +09:00
xdiff	…
.cirrus.yml	…
.clang-format	clang-format: fix typo in comment	2023-11-01 12:24:19 +09:00
.editorconfig	…
.gitattributes	…
.gitignore	…
.gitmodules	…
.mailmap	…
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
GIT-VERSION-GEN	Git 2.43	2023-11-20 10:28:15 +09:00
INSTALL	…
LGPL-2.1	…
Makefile	Merge branch 'bc/racy-4gb-files'	2023-10-23 13:56:37 -07:00
README.md	…
RelNotes	Git 2.42.1	2023-11-02 16:59:16 +09:00
SECURITY.md	…
abspath.c	…
abspath.h	…
aclocal.m4	…
add-interactive.c	…
add-interactive.h	…
add-patch.c	…
advice.c	…
advice.h	…
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	…
apply.h	…
archive-tar.c	…
archive-zip.c	…
archive.c	…
archive.h	…
attr.c	Merge branch 'jc/attr-tree-config'	2023-10-30 07:09:55 +09:00
attr.h	…
banned.h	…
base85.c	…
base85.h	…
bisect.c	…
bisect.h	…
blame.c	…
blame.h	…
blob.c	…
blob.h	…
bloom.c	…
bloom.h	…
branch.c	…
branch.h	…
builtin.h	…
bulk-checkin.c	…
bulk-checkin.h	…
bundle-uri.c	…
bundle-uri.h	…
bundle.c	…
bundle.h	…
cache-tree.c	…
cache-tree.h	…
cbtree.c	…
cbtree.h	…
chdir-notify.c	…
chdir-notify.h	…
check-builtins.sh	…
checkout.c	…
checkout.h	…
chunk-format.c	…
chunk-format.h	…
color.c	…
color.h	…
column.c	…
column.h	…
combine-diff.c	…
command-list.txt	…
commit-graph.c	Merge branch 'ps/do-not-trust-commit-graph-blindly-for-existence'	2023-11-08 11:03:59 +09:00
commit-graph.h	Merge branch 'ps/do-not-trust-commit-graph-blindly-for-existence'	2023-11-08 11:03:59 +09:00
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	commit: detect commits that exist in commit-graph but not in the ODB	2023-11-01 12:04:06 +09:00
commit.h	…
common-main.c	…
config.c	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
config.h	…
config.mak.dev	…
config.mak.in	…
config.mak.uname	…
configure.ac	…
connect.c	…
connect.h	…
connected.c	…
connected.h	…
convert.c	…
convert.h	…
copy.c	…
copy.h	…
credential.c	…
credential.h	…
csum-file.c	…
csum-file.h	…
ctype.c	…
daemon.c	…
date.c	…
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	…
delta-islands.h	…
delta.h	…
detect-compiler	…
diagnose.c	…
diagnose.h	…
diff-delta.c	…
diff-lib.c	Merge branch 'js/diff-cached-fsmonitor-fix' into maint-2.42	2023-11-02 16:53:19 +09:00
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	Merge branch 'pw/diff-no-index-from-named-pipes' into maint-2.42	2023-11-02 16:53:18 +09:00
diff.c	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
diff.h	…
diffcore-break.c	…
diffcore-delta.c	…
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	…
diffcore-rotate.c	…
diffcore.h	…
dir-iterator.c	…
dir-iterator.h	…
dir.c	…
dir.h	…
editor.c	…
editor.h	…
entry.c	…
entry.h	…
environment.c	max_tree_depth: lower it for MSVC to avoid stack overflows	2023-11-02 08:58:28 +09:00
environment.h	…
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	Merge branch 'ts/unpacklimit-config-fix' into maint-2.42	2023-11-02 16:53:16 +09:00
fetch-pack.h	…
fmt-merge-msg.c	…
fmt-merge-msg.h	…
fsck.c	…
fsck.h	…
fsmonitor--daemon.h	…
fsmonitor-ipc.c	…
fsmonitor-ipc.h	…
fsmonitor-ll.h	…
fsmonitor-path-utils.h	…
fsmonitor-settings.c	…
fsmonitor-settings.h	…
fsmonitor.c	…
fsmonitor.h	…
generate-cmdlist.sh	…
generate-configlist.sh	…
generate-hooklist.sh	…
gettext.c	…
gettext.h	…
git-archimport.perl	…
git-compat-util.h	Merge branch 'mp/rebase-label-length-limit' into maint-2.42	2023-11-02 16:53:14 +09:00
git-curl-compat.h	…
git-cvsexportcommit.perl	…
git-cvsimport.perl	…
git-cvsserver.perl	…
git-difftool--helper.sh	…
git-filter-branch.sh	…
git-instaweb.sh	…
git-merge-octopus.sh	…
git-merge-one-file.sh	…
git-merge-resolve.sh	…
git-mergetool--lib.sh	…
git-mergetool.sh	…
git-p4.py	…
git-quiltimport.sh	…
git-request-pull.sh	…
git-send-email.perl	Merge branch 'tz/send-email-helpfix'	2023-11-20 09:57:22 +09:00
git-sh-i18n.sh	…
git-sh-setup.sh	…
git-submodule.sh	…
git-svn.perl	…
git-web--browse.sh	…
git-zlib.c	…
git-zlib.h	…
git.c	…
git.rc	…
gpg-interface.c	…
gpg-interface.h	…
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash-ll.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.h	…
hashmap.c	…
hashmap.h	…
help.c	help: handle NULL value for alias.* config	2023-12-09 08:24:47 +09:00
help.h	…
hex-ll.c	…
hex-ll.h	…
hex.c	…
hex.h	…
hook.c	…
hook.h	…
http-backend.c	…
http-fetch.c	…
http-push.c	…
http-walker.c	…
http.c	Merge branch 'jk/redact-h2h3-headers-fix' into maint-2.42	2023-11-02 16:53:19 +09:00
http.h	…
ident.c	…
ident.h	…
imap-send.c	…
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	…
line-log.h	…
line-range.c	…
line-range.h	…
linear-assignment.c	…
linear-assignment.h	…
list-objects-filter-options.c	…
list-objects-filter-options.h	…
list-objects-filter.c	…
list-objects-filter.h	…
list-objects.c	Merge branch 'tb/rev-list-unpacked-fix'	2023-11-08 15:04:42 +09:00
list-objects.h	…
list.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	…
log-tree.h	…
ls-refs.c	…
ls-refs.h	…
mailinfo.c	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
mailinfo.h	…
mailmap.c	…
mailmap.h	…
match-trees.c	…
match-trees.h	…
mem-pool.c	…
mem-pool.h	…
merge-blobs.c	…
merge-blobs.h	…
merge-ll.c	…
merge-ll.h	…
merge-ort-wrappers.c	…
merge-ort-wrappers.h	…
merge-ort.c	Merge branch 'wx/merge-ort-comment-typofix' into maint-2.42	2023-11-02 16:53:27 +09:00
merge-ort.h	…
merge-recursive.c	…
merge-recursive.h	…
merge.c	…
merge.h	…
mergesort.h	…
midx.c	…
midx.h	…
name-hash.c	…
name-hash.h	…
notes-cache.c	…
notes-cache.h	…
notes-merge.c	…
notes-merge.h	…
notes-utils.c	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
notes-utils.h	…
notes.c	…
notes.h	…
object-file.c	…
object-file.h	…
object-name.c	…
object-name.h	…
object-store-ll.h	…
object-store.h	…
object.c	…
object.h	…
oid-array.c	…
oid-array.h	…
oidmap.c	…
oidmap.h	…
oidset.c	…
oidset.h	…
oidtree.c	…
oidtree.h	…
pack-bitmap-write.c	…
pack-bitmap.c	Merge branch 'tb/rev-list-unpacked-fix'	2023-11-08 15:04:42 +09:00
pack-bitmap.h	…
pack-check.c	…
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	…
pack-objects.h	…
pack-revindex.c	Merge branch 'jk/chunk-bounds'	2023-10-23 13:56:36 -07:00
pack-revindex.h	…
pack-write.c	…
pack.h	…
packfile.c	…
packfile.h	…
pager.c	…
pager.h	…
parallel-checkout.c	…
parallel-checkout.h	…
parse-options-cb.c	…
parse-options.c	parse-options: make CMDMODE errors more precise	2023-10-29 09:15:18 +09:00
parse-options.h	parse-options: make CMDMODE errors more precise	2023-10-29 09:15:18 +09:00
parse.c	…
parse.h	…
patch-delta.c	…
patch-ids.c	…
patch-ids.h	…
path.c	…
path.h	…
pathspec.c	…
pathspec.h	…
pkt-line.c	…
pkt-line.h	…
preload-index.c	…
preload-index.h	…
pretty.c	…
pretty.h	…
prio-queue.c	…
prio-queue.h	…
progress.c	…
progress.h	…
promisor-remote.c	…
promisor-remote.h	…
prompt.c	…
prompt.h	…
protocol-caps.c	…
protocol-caps.h	…
protocol.c	…
protocol.h	…
prune-packed.c	…
prune-packed.h	…
quote.c	…
quote.h	…
range-diff.c	…
range-diff.h	…
reachable.c	…
reachable.h	…
read-cache-ll.h	…
read-cache.c	…
read-cache.h	…
rebase-interactive.c	…
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	…
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	…
reflog.h	…
refs.c	…
refs.h	…
refspec.c	…
refspec.h	…
remote-curl.c	…
remote.c	…
remote.h	…
replace-object.c	…
replace-object.h	…
repo-settings.c	…
repository.c	…
repository.h	…
rerere.c	…
rerere.h	…
reset.c	…
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	rev-list: add commit object support in `--missing` option	2023-11-01 12:07:18 +09:00
revision.h	rev-list: add commit object support in `--missing` option	2023-11-01 12:07:18 +09:00
run-command.c	…
run-command.h	…
sane-ctype.h	…
scalar.c	Merge branch 'ds/scalar-updates' into maint-2.42	2023-11-02 16:53:15 +09:00
send-pack.c	…
send-pack.h	…
sequencer.c	Merge branch 'ob/sequencer-remove-dead-code' into maint-2.42	2023-11-02 16:53:24 +09:00
sequencer.h	…
serve.c	…
serve.h	…
server-info.c	…
server-info.h	…
setup.c	setup: handle NULL value when parsing extensions	2023-12-09 08:24:46 +09:00
setup.h	Merge branch 'ds/scalar-updates' into maint-2.42	2023-11-02 16:53:15 +09:00
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	shallow: fix memory leak when registering shallow roots	2023-11-07 08:51:41 +09:00
shallow.h	…
shared.mak	…
shell.c	…
shortlog.h	…
sideband.c	…
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	…
sparse-index.h	…
split-index.c	…
split-index.h	…
stable-qsort.c	…
statinfo.c	…
statinfo.h	…
strbuf.c	…
strbuf.h	…
streaming.c	…
streaming.h	…
string-list.c	…
string-list.h	…
strmap.c	…
strmap.h	…
strvec.c	strvec: drop unnecessary include of hex.h	2023-11-03 08:26:55 +09:00
strvec.h	…
sub-process.c	…
sub-process.h	…
submodule-config.c	submodule: handle NULL value when parsing submodule.*.branch	2023-12-09 08:24:47 +09:00
submodule-config.h	…
submodule.c	…
submodule.h	…
symlinks.c	…
symlinks.h	…
tag.c	…
tag.h	…
tar.h	…
tempfile.c	…
tempfile.h	…
thread-utils.c	…
thread-utils.h	…
tmp-objdir.c	…
tmp-objdir.h	…
trace.c	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	config: handle NULL value when parsing non-bools	2023-12-09 08:24:39 +09:00
trailer.h	…
transport-helper.c	…
transport-internal.h	…
transport.c	…
transport.h	…
tree-diff.c	…
tree-walk.c	…
tree-walk.h	…
tree.c	…
tree.h	…
unicode-width.h	…
unimplemented.sh	…
unix-socket.c	…
unix-socket.h	…
unix-stream-server.c	…
unix-stream-server.h	…
unpack-trees.c	…
unpack-trees.h	…
upload-pack.c	Merge branch 'ds/upload-pack-error-sequence-fix' into maint-2.42	2023-11-02 16:53:20 +09:00
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	…
userdiff.c	…
userdiff.h	…
utf8.c	…
utf8.h	…
varint.c	…
varint.h	…
version.c	…
version.h	…
versioncmp.c	…
versioncmp.h	…
walker.c	…
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	…
worktree.h	…
wrap-for-bin.sh	…
wrapper.c	…
wrapper.h	…
write-or-die.c	…
write-or-die.h	…
ws.c	…
ws.h	…
wt-status.c	Merge branch 'jk/diff-result-code-cleanup' into maint-2.42	2023-11-02 16:53:16 +09:00
wt-status.h	…
xdiff-interface.c	…
xdiff-interface.h	…

README.md

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission and Documentation/CodingGuidelines).

Those wishing to help with error message, usage and informational message string translations (localization l10) should see po/README.md (a po file is a Portable Object file that holds the translations).

To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). The mailing list archives are available at https://lore.kernel.org/git/, http://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
"global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
"goddamn idiotic truckload of sh*t": when it breaks