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To be able to run systemd in a Type=notify transient unit, the notify
socket can't be bind mounted to /run/systemd/notify as systemd in the
transient unit wants to use that as its own notify socket which
conflicts with systemd on the host.
Instead, for sandboxed units, let's bind mount the notify socket to
/run/host/notify as documented in the container interface. Since we
don't guarantee a stable location for the notify socket and insist users
use $NOTIFY_SOCKET to get its path, this is safe to do.
To be able to run systemd in a Type=notify transient unit, the notify
socket can't be bind mounted to /run/systemd/notify as systemd in the
transient unit wants to use that as its own notify socket which conflicts
with systemd on the host.
Instead, for sandboxed units, let's bind mount the notify socket to
/run/host/notify as documented in the container interface. Since we don't
guarantee a stable location for the notify socket and insist users use
$NOTIFY_SOCKET to get its path, this is safe to do.
adding `KEYBOARD_KEY_76` in generic section is causing a regression
in MSI GF63. Moving this down fixes.
This commit also adds a probable KEY Code for MSI GF63 touchpad toggling
Recently, PrivateUsers=identity was added to support mapping the first
65536 UIDs/GIDs from parent to the child namespace and mapping the other
UID/GIDs to the nobody user.
However, there are use cases where users have UIDs/GIDs > 65536 and need
to do a similar identity mapping. Moreover, in some of those cases,
users want a full identity mapping from 0 -> UID_MAX.
To support this, we add PrivateUsers=full that does identity mapping for
all available UID/GIDs.
Note to differentiate ourselves from the init user namespace, we need to
set up the uid_map/gid_map like:
```
0 0 1
1 1 UINT32_MAX - 1
```
as the init user namedspace uses `0 0 UINT32_MAX` and some applications
- like systemd itself - determine if its a non-init user namespace based
on uid_map/gid_map files.
Note systemd will remove this heuristic in running_in_userns() in
version 258 (https://github.com/systemd/systemd/pull/35382) and uses
namespace inode. But some users may be running a container image with
older systemd < 258 so we keep this hack until version 259 for version
N-1 compatibility.
In addition to mapping the whole UID/GID space, we also set
/proc/pid/setgroups to "allow". While we usually set "deny" to avoid
security issues with dropping supplementary groups
(https://lwn.net/Articles/626665/), this ends up breaking dbus-broker
when running /sbin/init in full OS containers.
Fixes: #35168Fixes: #35425
Initialize the start of the system-wide idle time with the time logind was
initialized and not with the start of the Unix epoch. This means that systemd
will not repport a unreasonable long idle time (around 54 years at the time of
writing this), especially at in the early boot, while no login manager session,
e.g,. gdm, had a chance to provide a more accurate start of the idle period.
Fixes#35163
* e8b7c9a4dd Install 81-net-bridge.rules
* 50d2997a07 Install systemd-creds bash completion
* ff0c42823c test: fix flaky boot-and-services test
* 2a19dee4ba test: fix flaky boot-and-services test
* a15a0bfe60 Update changelog for 257-2 release
* c24eafcb7e Backport patches to fix test failures
* 29840f9b68 udev: install dmi_memory_id and its rules on riscv64
* 44893bdb32 Update changelog for 257-1 release
* 7f71d995fb Update symbols file for v257
* 2dd2b80499 Update upstream source from tag 'upstream/257'
* 51a3271a85 Update changelog for 257~rc3-1 release
* 8e687227c5 Update symbols for 257~rc3
* c9bae527d6 Drop patches, merged upstream
* e8cf329870 Update upstream source from tag 'upstream/257_rc3'
* 794457516d autopkgtest: fix one more tzdata dependency
* 16bb143da1 Bump version in tzdata dependency due to p-u upload
* f2ddf70604 sysctl: Add file trigger on /usr/lib/sysctl.d to restart systemd-sysctl
* 79260cb0f4 Increase minimum sections in stub PE header on arm64/armhf/riscv64 to 500
* ed3af24635 systemd-ukfy: recommend systemd-boot-efi for the stub
When trying to run dbus-broker in a systemd unit with PrivateUsers=full,
we see dbus-broker fails with EPERM at `util_audit_drop_permissions`.
The root cause is dbus-broker calls the setgroups() system call and this
is disallowed via systemd's implementation of PrivateUsers= by setting
/proc/pid/setgroups = deny. This is done to remediate potential privilege
escalation vulnerabilities in user namespaces where an attacker can remove
supplementary groups and gain access to resources where those groups are
restricted.
However, for OS-like containers, setgroups() is a pretty common API and
disabling it is not feasible. So we allow setgroups() by setting
/proc/pid/setgroups to allow in PrivateUsers=full. Note security conscious
users can still use SystemCallFilter= to disable setgroups() if they want
to specifically prevent this system call.
Fixes: #35425
semaphore CI runs are always very close to the limit of 1hr, and often
time out when it's particularly oversubscribed.
Skip some low-value test cases to shorten the runtime.
