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Jeff King e69ac42fcc docs: document security issues around untrusted .git dirs
For a long time our general philosophy has been that it's unsafe to run
arbitrary Git commands if you don't trust the hooks or config in .git,
but that running upload-pack should be OK. E.g., see 1456b043fc (Remove
post-upload-hook, 2009-12-10), or the design of uploadpack.packObjectsHook.

But we never really documented this (and even the discussions that led
to 1456b043fc were not on the public list!). Let's try to make our
approach more clear, but also be realistic that even upload-pack carries
some risk.

Helped-by: Filip Hejsek <filip.hejsek@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2024-04-17 22:29:57 +02:00
.github ci(linux32): add a note about Actions that must not be updated 2024-04-17 00:00:58 +02:00
block-sha1
builtin upload-pack: disable lazy-fetching by default 2024-04-17 22:29:56 +02:00
ci Merge branch 'quicker-asan-lsan' 2024-04-17 00:00:56 +02:00
compat Merge branch 'jh/fsmonitor-darwin-modernize' 2024-04-16 23:55:55 +02:00
contrib Merge branch 'ab/fewer-the-index-macros' 2022-12-01 18:38:07 +09:00
Documentation docs: document security issues around untrusted .git dirs 2024-04-17 22:29:57 +02:00
ewah
git-gui Makefiles: change search through $(MAKEFLAGS) for GNU make 4.4 2022-12-01 07:24:12 +09:00
gitk-git
gitweb
mergetools
negotiator
oss-fuzz
perl
po l10n: zh_TW.po: Git 2.39-rc2 2022-12-11 01:27:25 +08:00
refs Merge branch 'ps/fsync-refs-fix' into maint-2.39 2023-02-14 14:15:50 -08:00
reftable
sha1collisiondetection@855827c583
sha1dc
sha256
t upload-pack: disable lazy-fetching by default 2024-04-17 22:29:56 +02:00
templates
trace2
xdiff xdiff: mark unused parameter in xdl_call_hunk_func() 2022-12-13 22:16:23 +09:00
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore
.gitmodules
.mailmap mailmap: update email address of Matheus Tavares 2022-12-10 09:17:36 +09:00
.tsan-suppressions
abspath.c
aclocal.m4
add-interactive.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
add-interactive.h
add-patch.c
advice.c
advice.h
alias.c
alias.h
alloc.c
alloc.h
apply.c Sync with 2.38.5 2023-04-17 21:16:08 +02:00
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
attr.c Sync with maint-2.37 2023-01-19 13:48:26 -08:00
attr.h Merge branch 'maint-2.35' into maint-2.36 2022-12-13 21:19:11 +09:00
banned.h
base85.c
bisect.c
bisect.h
blame.c
blame.h
blob.c blob: drop unused parts of parse_blob_buffer() 2022-12-13 22:16:22 +09:00
blob.h blob: drop unused parts of parse_blob_buffer() 2022-12-13 22:16:22 +09:00
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
cache.h fetch/clone: detect dubious ownership of local repositories 2024-04-17 22:29:54 +02:00
cbtree.c
cbtree.h
chdir-notify.c
chdir-notify.h
check-builtins.sh
checkout.c
checkout.h
chunk-format.c
chunk-format.h
CODE_OF_CONDUCT.md
color.c
color.h
column.c utf8: fix truncated string lengths in utf8_strnwidth() 2022-12-09 14:26:21 +09:00
column.h
combine-diff.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
command-list.txt
commit-graph.c
commit-graph.h
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c Merge branch 'rs/clear-commit-marks-cleanup' into maint-2.39 2023-02-14 14:15:56 -08:00
commit.h
common-main.c
config.c Sync with 2.38.5 2023-04-17 21:16:08 +02:00
config.h
config.mak.dev
config.mak.in
config.mak.uname use enhanced basic regular expressions on macOS 2023-01-08 10:06:34 +09:00
configure.ac
connect.c server_supports_v2(): use a separate function for die_on_error 2022-12-13 22:08:52 +09:00
connect.h server_supports_v2(): use a separate function for die_on_error 2022-12-13 22:08:52 +09:00
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
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 diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
diff-merges.c
diff-merges.h
diff-no-index.c
diff.c Merge branch 'jk/unused-post-2.39' into maint-2.39 2023-02-14 14:15:55 -08:00
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: prevent top-level symlinks without FOLLOW_SYMLINKS 2023-01-24 16:52:16 -08:00
dir-iterator.h dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS 2023-01-24 16:52:16 -08:00
dir.c Sync with 2.34.8 2023-04-17 21:15:59 +02:00
dir.h
editor.c
entry.c
entry.h
environment.c
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c server_supports_v2(): use a separate function for die_on_error 2022-12-13 22:08:52 +09:00
fetch-pack.h
fmt-merge-msg.c
fmt-merge-msg.h
fsck.c Merge branch 'maint-2.36' into maint-2.37 2022-12-13 21:20:35 +09:00
fsck.h Sync with 2.38.3 2022-12-13 21:25:15 +09:00
fsmonitor--daemon.h
fsmonitor-ipc.c
fsmonitor-ipc.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 Sync with 2.38.5 2023-04-17 21:16:08 +02:00
gettext.h Sync with 2.33.8 2023-04-17 21:15:56 +02:00
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'rs/use-enhanced-bre-on-macos' into maint-2.39 2023-02-14 14:15:49 -08:00
git-curl-compat.h remote-curl: add Transfer-Encoding header only for older curl 2024-04-10 19:24:48 +02:00
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
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl
GIT-VERSION-GEN Git 2.39.3 2023-04-17 21:16:08 +02:00
git-web--browse.sh
git.c
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hash-lookup.c
hash-lookup.h
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
hook.c
hook.h
http-backend.c
http-fetch.c
http-push.c Sync with 2.31.8 2023-04-17 21:15:49 +02:00
http-walker.c
http.c Merge branch 'backport/jk/libcurl-8.7-regression-workaround' into maint-2.39 2024-04-16 23:58:53 +02:00
http.h Sync with 2.30.9 2023-04-17 21:15:44 +02:00
ident.c
imap-send.c
INSTALL Merge branch 'backport/jk/libcurl-8.7-regression-workaround' into maint-2.39 2024-04-16 23:58:53 +02:00
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c
line-log.h
line-range.c line-range: fix infinite loop bug with '$' regex 2022-12-20 10:00:43 +09:00
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c
list-objects-filter-options.h
list-objects-filter.c Merge branch 'jk/unused-post-2.39' into maint-2.39 2023-02-14 14:15:55 -08:00
list-objects-filter.h
list-objects.c list-objects: drop process_gitlink() function 2022-12-13 22:16:22 +09:00
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c
log-tree.h
ls-refs.c ls-refs: use repository parameter to iterate refs 2022-12-13 22:16:22 +09:00
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile Sync with 2.36.6 2023-04-17 21:16:04 +02:00
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ort-wrappers.c
merge-ort-wrappers.h
merge-ort.c
merge-ort.h
merge-recursive.c merge-recursive: fix variable typo in error message 2022-11-27 10:26:10 +09:00
merge-recursive.h
merge.c
mergesort.h
midx.c
midx.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-file.c object-file: inline write_buffer() 2022-12-14 10:29:19 +09:00
object-name.c
object-store.h
object.c blob: drop unused parts of parse_blob_buffer() 2022-12-13 22:16:22 +09:00
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
pack-bitmap.h
pack-check.c
pack-mtimes.c
pack-mtimes.h
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c git: remove duplicate includes 2022-12-15 09:09:38 +09:00
pack.h
packfile.c
packfile.h
pager.c
parallel-checkout.c
parallel-checkout.h
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c fetch/clone: detect dubious ownership of local repositories 2024-04-17 22:29:54 +02:00
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Sync with Git 2.37.5 2022-12-13 21:23:36 +09:00
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c upload-pack: disable lazy-fetching by default 2024-04-17 22:29:56 +02:00
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 Sync with 2.31.8 2023-04-17 21:15:49 +02:00
range-diff.h
reachable.c
reachable.h
read-cache.c
README.md
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c ls-refs: use repository parameter to iterate refs 2022-12-13 22:16:22 +09:00
ref-filter.h
reflog-walk.c
reflog-walk.h
reflog.c Merge branch 'rs/reflog-expiry-cleanup' into maint-2.39 2023-02-14 14:15:56 -08:00
reflog.h
refs.c ls-refs: use repository parameter to iterate refs 2022-12-13 22:16:22 +09:00
refs.h ls-refs: use repository parameter to iterate refs 2022-12-13 22:16:22 +09:00
refspec.c
refspec.h
RelNotes Git 2.38.5 2023-04-17 21:16:07 +02:00
remote-curl.c Merge branch 'backport/jk/libcurl-8.7-regression-workaround' into maint-2.39 2024-04-16 23:58:53 +02:00
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 diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
revision.h
run-command.c
run-command.h
scalar.c
SECURITY.md
send-pack.c
send-pack.h
sequencer.c git: remove duplicate includes 2022-12-15 09:09:38 +09:00
sequencer.h
serve.c
serve.h
server-info.c
setup.c fetch/clone: detect dubious ownership of local repositories 2024-04-17 22:29:54 +02:00
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shared.mak Merge branch 'ab/gnumake-4.4-fix' 2022-12-01 18:38:07 +09:00
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
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
strmap.c
strmap.h
strvec.c
strvec.h
sub-process.c
sub-process.h
submodule-config.c
submodule-config.h
submodule.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
submodule.h
symlinks.c
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
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 git: remove duplicate includes 2022-12-15 09:09:38 +09:00
unpack-trees.h
upload-pack.c
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c userdiff: mark unused parameter in internal callback 2022-12-13 22:16:23 +09:00
userdiff.h
utf8.c Sync with Git 2.31.6 2022-12-13 21:09:40 +09:00
utf8.h Sync with Git 2.31.6 2022-12-13 21:09:40 +09:00
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c
worktree.h
wrap-for-bin.sh
wrapper.c
write-or-die.c
ws.c ws: drop unused parameter from ws_blank_line() 2022-12-13 22:16:23 +09:00
wt-status.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

Build status

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