Bug#886325: dbus daemon does not start with error "undefined symbol: XML_SetHashSalt"

[Alberto Brosich]

Package: dbus
Version: 1.10.24-0+deb9u1
Severity: grave
Justification: renders package unusable

I'm working on Debian stable.

After a small update and a reboot, dbus daemon does not start with the
following message:

systemd[1]: Started D-Bus System Message Bus.
dbus-daemon[1350]: /usr/bin/dbus-daemon: symbol lookup error:
/usr/bin/dbus-daemon: undefined symbol: XML_SetHashSalt
amaltea systemd[1]: dbus.service: Main process exited, code=exited,
status=127/n/a
amaltea systemd[1]: dbus.service: Unit entered failed state.
amaltea systemd[1]: dbus.service: Failed with result 'exit-code'

Starting manually same result:
# DBUS_VERBOSE=1 dbus-daemon --session --print-address
dbus-daemon: symbol lookup error: dbus-daemon: undefined symbol:
XML_SetHashSalt

Other services depend on it, therefore the machine is unusable.

I tried to upgrade expat and libexpat1 packages from testing. libexpat1
depends on libc6 >= 2.25, no upgrade possible.

The versions of packages are:

ii dbus 1.10.24-0+deb9u1
ii expat 2.2.5-3 (was 2.2.0)
ii libexpat1:amd64 2.2.0-2+deb9u1

-- System Information:
Debian Release: 9.3
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-4-amd64 (SMP w/24 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages dbus depends on:
ii adduser 3.115
ii init-system-helpers 1.48
ii libapparmor1 2.11.0-3
ii libaudit1 1:2.6.7-2
ii libc6 2.24-11+deb9u1
ii libcap-ng0 0.7.7-3+b1
ii libdbus-1-3 1.10.24-0+deb9u1
ii libexpat1 2.2.0-2+deb9u1
ii libselinux1 2.6-3+b3
ii libsystemd0 232-25+deb9u1
ii lsb-base 9.20161125

dbus recommends no packages.

Versions of packages dbus suggests:
pn default-dbus-session-bus | dbus-session-bus <none>

Versions of packages dbus is related to:
pn dbus-x11 <none>
ii systemd 232-25+deb9u1
ii systemd-sysv 232-25+deb9u1

-- no debconf information

[Simon McVittie]

On Thu, 04 Jan 2018 at 14:37:53 +0100, Alberto Brosich wrote:
> dbus-daemon[1350]: /usr/bin/dbus-daemon: symbol lookup error:
> /usr/bin/dbus-daemon: undefined symbol: XML_SetHashSalt

...
> ii libexpat1:amd64 2.2.0-2+deb9u1

According to /var/lib/dpkg/info/libexpat1:amd64.symbols on my stable
system, libexpat1 has provided that symbol since version 2.1~beta3, which
is older than oldoldstable. Do you have an outdated copy of libexpat.so.1
in /usr/local/lib or some similar location?

smcv