Package: systemd
Version: 241-1
Severity: normal
Tags: patch upstream
Dear Maintainer,
At work, users (in LDAP) have home directories set as
/export/./home/username. The /./ is used for instance by vsftpd
to indicate the location where the users are chrooted into (not
relevant to this bug other than it gives some context as to why
there's a /./ in there).
With those home directories however, user login sessions don't
work properly, with for instance lxpolkit complaining about a
missing session, or network manager complaining about
insufficient rights. systemd-cgls doesn't show "user" control
groups. When using gdm3 and gnome, it's impossible to login (log
back out straight after authentication).
The auth logs have:
systemd-logind[1386]: Failed to start session scope session-17.scope: Failed to
add required mount "/export/./home/stephane": Success
Turns out systemd doesn't like that /./. Looking at the code, it
fails because the path is not "normalized".
I'm not sure when it stopped working (Ubuntu's 237-3ubuntu10.13
package doesn't have the problem, 240-2 already had the problem,
my auth.log doesn't go further back).
The patch below fixes the problem for me. We call path_simplify
with a "kill_dots" argument of "true" instead of "false".
--- systemd-241/src/core/unit.c~ 2019-03-06 16:53:30.910741632 +0000
+++ systemd-241/src/core/unit.c 2019-03-06 16:26:00.018550897 +0000
@@ -4598,7 +4598,7 @@ int unit_require_mounts_for(Unit *u, con
if (!p)
return -ENOMEM;
- path = path_simplify(p, false);
+ path = path_simplify(p, true);
if (!path_is_normalized(path))
return -EPERM;
-- Package-specific info:
-- System Information:
Debian Release: buster/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500,
'stable-updates'), (500, 'oldstable-updates'), (500, 'testing'), (500,
'stable'), (500, 'oldstable'), (50, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.19.0-2-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages systemd depends on:
ii adduser 3.118
ii libacl1 2.2.52-5
ii libapparmor1 2.13.2-7
ii libaudit1 1:2.8.4-2
ii libblkid1 2.33.1-0.1
ii libc6 2.28-7
ii libcap2 1:2.25-2
ii libcryptsetup12 2:2.1.0-1
ii libgcrypt20 1.8.4-5
ii libgnutls30 3.6.6-2
ii libgpg-error0 1.35-1
ii libidn11 1.33-2.2
ii libip4tc0 1.8.2-3
ii libkmod2 26-1
ii liblz4-1 1.8.3-1
ii liblzma5 5.2.4-1
ii libmount1 2.33.1-0.1
ii libpam0g 1.3.1-5
ii libseccomp2 2.3.3-4
ii libselinux1 2.8-1+b1
ii libsystemd0 241-1
ii mount 2.33.1-0.1
ii util-linux 2.33.1-0.1
Versions of packages systemd recommends:
ii dbus 1.12.12-1
ii libpam-systemd 241-1
Versions of packages systemd suggests:
ii policykit-1 0.105-25
pn systemd-container <none>
Versions of packages systemd is related to:
pn dracut <none>
ii initramfs-tools 0.133
ii udev 241-1
-- debconf-show failed
