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Backports of patch from systemd git to stable distributions
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af7bce4165
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Zbigniew Jędrzejewski-Szmek af7bce4165 fuzz: skip bus error map in bus_error_name_to_errno() 
Fuzzing with AddressSanitizer reports an error here:
==11==ERROR: AddressSanitizer: global-buffer-overflow on address 0x7fe53f5497d8 at pc 0x7fe53ef055c9 bp 0x7ffd344e9380 sp 0x7ffd344e9378
READ of size 4 at 0x7fe53f5497d8 thread T0
SCARINESS: 27 (4-byte-read-global-buffer-overflow-far-from-bounds)
    #0 0x7fe53ef055c8 in bus_error_name_to_errno /work/build/../../src/systemd/src/libsystemd/sd-bus/bus-error.c:118:24
    #1 0x7fe53ef0577b in bus_error_setfv /work/build/../../src/systemd/src/libsystemd/sd-bus/bus-error.c:274:17
    #2 0x7fe53ef0595a in sd_bus_error_setf /work/build/../../src/systemd/src/libsystemd/sd-bus/bus-error.c:284:21
    #3 0x561059 in manager_load_unit_prepare /work/build/../../src/systemd/src/core/manager.c
    #4 0x560680 in manager_load_unit /work/build/../../src/systemd/src/core/manager.c:1773:13
    #5 0x5d49a6 in unit_add_dependency_by_name /work/build/../../src/systemd/src/core/unit.c:2882:13
    #6 0x538996 in config_parse_unit_deps /work/build/../../src/systemd/src/core/load-fragment.c:152:21
    #7 0x6db771 in next_assignment /work/build/../../src/systemd/src/shared/conf-parser.c:155:32
    #8 0x6d697e in parse_line /work/build/../../src/systemd/src/shared/conf-parser.c:273:16
    #9 0x6d5c48 in config_parse /work/build/../../src/systemd/src/shared/conf-parser.c:390:21
    #10 0x535678 in LLVMFuzzerTestOneInput /work/build/../../src/systemd/src/fuzz/fuzz-unit-file.c:41:16
    #11 0x73bd60 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/libfuzzer/FuzzerLoop.cpp:517:13
    #12 0x73a39f in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool*) /src/libfuzzer/FuzzerLoop.cpp:442:3
    #13 0x73d9bc in fuzzer::Fuzzer::MutateAndTestOne() /src/libfuzzer/FuzzerLoop.cpp:650:19
    #14 0x73fa05 in fuzzer::Fuzzer::Loop(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, fuzzer::fuzzer_allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) /src/libfuzzer/FuzzerLoop.cpp:773:5
    #15 0x71f75d in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/libfuzzer/FuzzerDriver.cpp:754:6
    #16 0x71285c in main /src/libfuzzer/FuzzerMain.cpp:20:10
    #17 0x7fe53da0482f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #18 0x430e68 in _start (/out/fuzz-unit-file+0x430e68)

0x7fe53f5497d8 is located 8 bytes to the right of global variable 'bus_common_errors' defined in '../../src/systemd/src/libsystemd/sd-bus/bus-common-errors.c:28:51' (0x7fe53f549300) of size 1232
SUMMARY: AddressSanitizer: global-buffer-overflow /work/build/../../src/systemd/src/libsystemd/sd-bus/bus-error.c:118:24 in bus_error_name_to_errno
Shadow bytes around the buggy address:
  0x0ffd27ea12a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ffd27ea12b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ffd27ea12c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ffd27ea12d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ffd27ea12e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0ffd27ea12f0: 00 00 00 00 00 00 00 00 00 00 f9[f9]f9 f9 f9 f9
  0x0ffd27ea1300: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0ffd27ea1310: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
  0x0ffd27ea1320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ffd27ea1330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0ffd27ea1340: 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
==11==ABORTING

but I think it's a false positive because of our low-level magic in how this
area is constructed.
2018-03-11 16:33:59 +01:00
.github doc: add a new doc/ directory, and move two markdown docs into them 2018-02-27 19:59:09 +01:00
.mkosi mkosi: remove intltool from deps 2018-02-16 13:01:12 +01:00
catalog catalog: update french translation 2017-12-22 15:34:51 +01:00
coccinelle coccinelle: similar to reallocarray() let's also systematically use malloc_multiply() 2018-03-02 12:39:07 +01:00
doc doc: add a new doc/ directory, and move two markdown docs into them 2018-02-27 19:59:09 +01:00
docs Add license headers and SPDX identifiers to meson.build files 2017-11-19 19:08:15 +01:00
factory/etc factory: remove broken pam_limits 2014-07-30 15:21:54 +02:00
hwdb hwdb: add axis overrides for HP Pavilion 15 (#8404) 2018-03-09 10:54:28 +01:00
man man: Correct value of default KillUserProcesses= 2018-03-09 18:29:25 +01:00
modprobe.d Add SPDX license headers to various assorted files 2017-11-19 19:08:15 +01:00
network Add license headers and SPDX identifiers to meson.build files 2017-11-19 19:08:15 +01:00
po po: Updated Indonesian translation (#8348) 2018-03-04 21:15:21 +09:00
presets Hook up systemd-tmpfiles as user units 2017-12-06 10:19:35 +01:00
rules rules: skip btrfs check if devices are not ready in 64-btrfs.rules (#8304) 2018-02-28 10:36:06 +01:00
scripts fuzz: add DHCP server fuzzer 2018-01-19 21:48:14 -05:00
shell-completion Introduce suspend-to-hibernate (#8274) 2018-03-08 14:17:33 +01:00
src fuzz: skip bus error map in bus_error_name_to_errno() 2018-03-11 16:33:59 +01:00
sysctl.d coredump: accept hostname on command line (#8033) 2018-02-15 12:12:46 +01:00
sysusers.d sysusers: use NOBODY_USER_NAME 2017-12-07 17:12:13 +09:00
test Add fuzzer for unit file parser 2018-03-11 16:33:59 +01:00
tmpfiles.d nologin: extend the /run/nologin descriptions a bit (#8244) 2018-02-22 14:21:30 +01:00
tools tools/hwdb-update: allow downloads to fail 2018-03-02 12:06:32 +01:00
travis-ci Integration of Travis CI and Coverity Scan Analysis (#7691) 2018-01-11 11:41:35 +01:00
units Introduce suspend-to-hibernate (#8274) 2018-03-08 14:17:33 +01:00
xorg login: avoid external process call 2018-01-12 18:02:57 +01:00
.dir-locals.el meson: also indent scripts with 8 spaces 2017-04-25 08:49:16 -04:00
.editorconfig editorconfig: add rule for meson.build files (#6671) 2017-08-28 16:37:23 +02:00
.gitattributes git: indicate that tabs are never OK in the systemd tree 2013-10-30 02:25:38 +01:00
.gitignore Add mkosi.output/ to .gitignore 2017-11-29 14:33:56 +01:00
.mailmap mailmap: one more person 2018-03-05 17:21:09 +01:00
.travis.yml Integration of Travis CI and Coverity Scan Analysis (#7691) 2018-01-11 11:41:35 +01:00
.vimrc vimrc: fix indentation logic for our docbook xml files 2016-04-29 12:23:34 +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 build-sys: add basic support for ./configure && make && make install 2017-07-18 10:05:06 -04:00
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 build-sys: Fix Makefile wrapper for install target (#6548) 2017-08-07 11:29:20 +02:00
meson_options.txt Merge pull request #8323 from xyproto/ok_color 2018-03-02 13:00:07 +01:00
meson.build Merge pull request #8412 from keszybz/meson-warning-fixes 2018-03-09 20:12:37 +01:00
mkosi.build mkosi: use locale that supports UTF-8, detect one that is available (#8340) 2018-03-05 17:03:52 +01:00
mkosi.default mkosi: create .mkosi directory 2016-10-06 11:53:58 -04:00
NEWS NEWS: fix typos in v238 section (#8369) 2018-03-06 17:35:47 +09:00
README README: fix context for CONFIG_DEVPTS_MULTIPLE_INSTANCES 2018-01-17 18:04:27 +00:00
README.md doc: add a new doc/ directory, and move two markdown docs into them 2018-02-27 19:59:09 +01:00
TODO update TODO 2018-03-02 16:26:03 +01:00
zanata.xml po: add basic fedora.zanata.org configuration 2018-02-19 13:56:57 +01:00

README.md

systemd - System and Service Manager

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Details

General information about systemd can be found in the systemd Wiki.

Information about build requirements are provided in the README file.

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

Please see the HACKING file for information 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.

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