From 94f42fe3a68129fc5d30fc0ee2094c3052ea782b Mon Sep 17 00:00:00 2001 From: Yu Watanabe Date: Thu, 6 Oct 2016 22:40:53 +0900 Subject: [PATCH] units: systemd-udevd: add AF_INET and AF_INET6 to RestrictAddressFamilies= (#4296) The udev builtin command `net_setup_link` requires AF_INET and AF_INET6. Fixes #4293. --- NEWS | 14 -------------- units/systemd-udevd.service.in | 2 +- 2 files changed, 1 insertion(+), 15 deletions(-) diff --git a/NEWS b/NEWS index 511c260c37..4924d7c4b6 100644 --- a/NEWS +++ b/NEWS @@ -21,20 +21,6 @@ CHANGES WITH 232 in spe ProtectKernelTunables=yes, ProtectControlGroups=yes, RestrictAddressFamilies=. - In particular, systemd-udevd.service is now run in a Seccomp-based - sandbox that prohibits access to AF_INET and AF_INET6 sockets and - thus access to the network. This might break code that runs from udev - rules that tries to talk to the network. Doing that is generally a - bad idea and unsafe due to a variety of reasons. It's also racy as - device management would race against network configuration. It is - recommended to rework such rules to use the SYSTEMD_WANTS property on - the relevant devices to pull in a proper systemd service (which can - be sandboxed differently and ordered correctly after the network - having come up). If that's not possible consider reverting this - sandboxing feature locally by removing the RestrictAddressFamilies= - setting from the systemd-udevd.service unit file, or adding AF_INET - and AF_INET6 to it. - * Support for dynamically creating users for the lifetime of a service has been added. If DynamicUser=yes is specified, user and group IDs will be allocated from the range 61184..65519 for the lifetime of the diff --git a/units/systemd-udevd.service.in b/units/systemd-udevd.service.in index cb2d8ba775..46d637883b 100644 --- a/units/systemd-udevd.service.in +++ b/units/systemd-udevd.service.in @@ -27,4 +27,4 @@ TasksMax=infinity MountFlags=slave MemoryDenyWriteExecute=yes RestrictRealtime=yes -RestrictAddressFamilies=AF_UNIX AF_NETLINK +RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6