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Backports of patch from systemd git to stable distributions
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Evgeny Vereshchagin 2cfb790391 Revert "Support -D_FORTIFY_SOURCE=3 by using __builtin_dynamic_object_size." 
This reverts commit 0bd292567a.

It isn't guaranteed anywhere that __builtin_dynamic_object_size can
always deduce the size of every object passed to it so systemd
can end up using either malloc_usable_size or
__builtin_dynamic_object_size when pointers are passed around,
which in turn can lead to actual segfaults like the one mentioned in
https://github.com/systemd/systemd/issues/23619.

Apparently __builtin_object_size can return different results for
pointers referring to the same memory as well but somehow it hasn't
caused any issues yet. Looks like this whole
malloc_usable_size/FORTIFY_SOURCE stuff should be revisited.

Closes https://github.com/systemd/systemd/issues/23619 and
https://github.com/systemd/systemd/issues/23150.

Reopens https://github.com/systemd/systemd/issues/22801
2022-06-05 19:13:17 +00:00
.clusterfuzzlite ci: unpin CFLite 2022-04-26 09:13:57 +00:00
.github ci: build systemd with clang with -Dmode=release --optimization=2 2022-06-05 16:26:54 +00:00
.lgtm/cpp-queries ci: pack-ify our custom CodeQL queries and enable them in Actions 2021-12-07 14:57:09 +01:00
.semaphore semaphoreci: re-enable rebooting tests 2022-04-07 14:53:49 +09:00
catalog Move message repeat 2022-06-01 00:20:30 +09:00
coccinelle coccinelle: don't try to use IN_SET() in assert_cc() 2022-05-30 18:17:11 +02:00
docs sd-bus: drop D-Bus version 2 format support 2022-06-01 03:41:15 +09:00
factory meson: also allow setting GIT_VERSION via templates 2022-04-05 22:18:31 +02:00
hwdb.d hwdb: Add Google Meet speakermic 2022-05-27 11:38:13 +01:00
LICENSES network: license all config files as CC0 2022-01-12 16:05:59 +01:00
man Merge pull request #23576 from yuwata/network-erspan-version 2022-06-02 16:58:55 +02:00
mkosi.default.d mkosi: drop libiptc from build for Fedora 2022-05-13 04:21:27 +09:00
modprobe.d meson: install the right README file in modprobe.d 2021-07-07 14:52:05 +02:00
network network: add example file that enables DHCP on ethernet links 2022-01-12 16:05:59 +01:00
po Update Bulgarian translation 2022-05-31 16:34:25 +02:00
presets units: enable systemd-network-generator by default 2021-12-16 09:49:39 +01:00
rules.d meson: install 70-power-switch.rules 2022-05-19 05:04:58 +09:00
shell-completion bash-completion: resolvectl: add missing options and verb 2022-05-08 14:14:28 +02:00
src Revert "Support -D_FORTIFY_SOURCE=3 by using __builtin_dynamic_object_size." 2022-06-05 19:13:17 +00:00
sysctl.d meson: also allow setting GIT_VERSION via templates 2022-04-05 22:18:31 +02:00
sysusers.d Use descriptive name for nobody 2022-05-27 22:09:24 +01:00
test test: enable virtio-rng device for QEMU guests 2022-06-03 01:52:28 +09:00
tmpfiles.d meson: Sort lines in tmpfiles.d/meson.build 2022-05-03 20:46:16 +02:00
tools meson: Switch default-locale default to C.UTF-8 2022-06-04 05:08:37 +09:00
units tree-wide: replace obsolete wiki links with systemd.io/manpages 2022-05-21 14:29:14 +02:00
xorg xorg/50-systemd-user: add a full license header 2021-10-01 14:45:00 +02:00
.clang-format clang-format: Adjust style of pointers 2022-05-30 04:00:54 +09:00
.ctags editors: Prevent ctags from following symlinks 2019-02-15 11:01:20 -08:00
.dir-locals.el scripts: use 4 space indentation 2019-04-12 08:30:31 +02:00
.editorconfig docs: configure editorconfig for css and html 2022-05-17 21:13:17 +02:00
.gitattributes gitattributes: introduce and use "generated" attribute 2021-10-18 09:42:55 +02:00
.gitignore git: ignore manifest 2022-05-15 15:35:46 +01:00
.lgtm.yml Revert "lgtm: disable cpp/missing-return (again)" 2022-04-16 10:59:29 +00:00
.mailmap mailmap: two more names 2021-03-30 13:17:58 +02:00
.packit.yml Packit: build SRPMs in Copr 2022-03-09 09:52:41 +00:00
.vimrc scripts: use 4 space indentation 2019-04-12 08:30:31 +02:00
.ycm_extra_conf.py ycm: add doc string for all the functions in configuration file 2017-11-29 13:21:49 -07:00
configure tools: shellcheck-ify tool scripts 2021-09-30 12:27:06 +02:00
LICENSE.GPL2 relicense to LGPLv2.1 (with exceptions) 2012-04-12 00:24:39 +02:00
LICENSE.LGPL2.1 licence: remove references to old FSF address 2012-12-17 11:41:31 +01:00
Makefile tree-wide: add spdx header on all scripts and helpers 2021-01-28 09:55:35 +01:00
meson_options.txt meson: Switch default-locale default to C.UTF-8 2022-06-04 05:08:37 +09:00
meson.build meson: Switch default-locale default to C.UTF-8 2022-06-04 05:08:37 +09:00
mkosi.build ci: check for failed services after boot 2021-12-10 10:25:43 +01:00
mkosi.postinst ci: check for failed services after boot 2021-12-10 10:25:43 +01:00
NEWS Minor wording fixes 2022-05-24 21:26:06 +02:00
README tree-wide: streamline wiki links 2022-05-21 14:28:03 +02:00
README.md README: rawhide -> Rawhide 2022-04-06 23:14:21 +09:00
TODO sd-bus: drop D-Bus version 2 format support 2022-06-01 03:41:15 +09:00

README.md

Systemd

System and Service Manager

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Details

Most documentation is available on systemd's web site.

Assorted, older, general information about systemd can be found in the systemd Wiki.

Information about build requirements is provided in the README file.

Consult our NEWS file for information about what's new in the most recent systemd versions.

Please see the Code Map for information about this repository's layout and content.

Please see the Hacking guide for information on how to hack on systemd and test your modifications.

Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.

When preparing patches for systemd, please follow our Coding Style Guidelines.

If you are looking for support, please contact our mailing list or join our IRC channel.

Stable branches with backported patches are available in the stable repo.