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d5e5bc2fe9
rename_process() requires CAP_SYS_RESOURCE so let's make sure it is in
our permitted set after execve() by adding in to the bounding set.
Previously,
systemd-userdbd.service - User Database Manager
Loaded: loaded (/usr/lib/systemd/system/systemd-userdbd.service; indirect; preset: disabled)
Active: active (running) since Mon 2022-12-19 17:07:21 CET; 17min ago
TriggeredBy: ● systemd-userdbd.socket
Docs: man:systemd-userdbd.service(8)
Main PID: 1880 (systemd-userdbd)
Status: "Processing requests..."
Tasks: 4 (limit: 2272)
Memory: 5.2M
CPU: 244ms
CGroup: /system.slice/systemd-userdbd.service
├─1880 /usr/lib/systemd/systemd-userdbd
├─2270 systemd-userwork
├─2271 systemd-userwork
└─2272 systemd-userwork
Now,
Loaded: loaded (/usr/lib/systemd/system/systemd-userdbd.service; indirect; preset: disabled)
Active: active (running) since Mon 2022-12-19 17:27:02 CET; 15s ago
TriggeredBy: ● systemd-userdbd.socket
Docs: man:systemd-userdbd.service(8)
Main PID: 2404 (systemd-userdbd)
Status: "Processing requests..."
Tasks: 4 (limit: 2272)
Memory: 5.5M
CPU: 89ms
CGroup: /system.slice/systemd-userdbd.service
├─2404 /usr/lib/systemd/systemd-userdbd
├─2407 "systemd-userwork: waiting..."
├─2408 "systemd-userwork: waiting..."
└─2409 "systemd-userwork: waiting..."
46 lines
1.2 KiB
SYSTEMD
46 lines
1.2 KiB
SYSTEMD
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=User Database Manager
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Documentation=man:systemd-userdbd.service(8)
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Requires=systemd-userdbd.socket
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After=systemd-userdbd.socket
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Before=sysinit.target
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DefaultDependencies=no
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[Service]
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CapabilityBoundingSet=CAP_DAC_READ_SEARCH CAP_SYS_RESOURCE
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ExecStart={{ROOTLIBEXECDIR}}/systemd-userdbd
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IPAddressDeny=any
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LimitNOFILE={{HIGH_RLIMIT_NOFILE}}
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LockPersonality=yes
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MemoryDenyWriteExecute=yes
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NoNewPrivileges=yes
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PrivateDevices=yes
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ProtectProc=invisible
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ProtectControlGroups=yes
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ProtectHome=yes
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ProtectHostname=yes
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ProtectKernelLogs=yes
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ProtectKernelModules=yes
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ProtectSystem=strict
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RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
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RestrictNamespaces=yes
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RestrictRealtime=yes
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RestrictSUIDSGID=yes
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SystemCallArchitectures=native
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SystemCallErrorNumber=EPERM
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SystemCallFilter=@system-service
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Type=notify
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{{SERVICE_WATCHDOG}}
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[Install]
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Also=systemd-userdbd.socket
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