Announcing D-Bus 1.11.8

Simon McVittie simon.mcvittie at
Tue Nov 29 00:45:02 UTC 2016

The “panics in the face of breakfast foods” release. This is a
development release, in the branch leading to future D-Bus 1.12.x
stable releases.
git tag: dbus-1.11.8

Build-time configuration:

• The new --enable-debug configure option provides an easy way to
  enable debug symbols, disable optimization and/or enable profiling.

• The --enable-compile-warnings configure option can be used to control
  compiler warnings.

• The --disable-compiler-optimisations configure option is no longer
  supported. Use --enable-debug=yes or CFLAGS=-O0 instead.


• D-Bus Specification version 0.30
  · Define the jargon term "activation" more clearly
  · Define the jargon term "auto-starting", which is one form of
  · Document the optional SystemdService key in service files
  · Use versioned interface and bus names in most examples
  · Clarify intended behaviour of Properties.GetAll
  (fd.o #36190, fd.o #98671; Philip Withnall, Simon McVittie)

• Fix and enable a lot of compiler warnings to improve future code
  quality. This might incidentally also fix some environment variable
  accesses on OS X.
  · In particular, printf-style functions in the libdbus API are now
    annotated with __attribute__((__format__(__printf__, *, *))) when
    compiling with gcc or clang. This might make printf bugs in other
    software visible at compile time.
  (fd.o #97357, fd.o #98192, fd.o #98195, fd.o #98658;
  Thomas Zimmermann, Simon McVittie)

• When running with AppArmor mediation (for example using Ubuntu's
  patched Linux kernel), clients can no longer auto-start services
  unless they would have been able to send the auto-starting message to
  the service after it starts. StartServiceByName() is unaffected, and
  continues to be allowed by default in AppArmor's
  <abstractions/dbus-strict> and <abstractions/dbus-session-strict>.
  (fd.o #98666, Simon McVittie)


• Work around an undesired effect of the fix for CVE-2014-3637
  (fd.o #80559), in which processes that frequently send fds, such as
  logind during a flood of new PAM sessions, can get disconnected for
  continuously having at least one fd "in flight" for too long;
  dbus-daemon interprets that as a potential denial of service attack.
  The workaround is to disable that check for uid 0 process such as
  logind, with a message in the system log. The bug remains open while
  we look for a more general solution.
  (fd.o #95263, LP#1591411; Simon McVittie)

• Don't run the test if X11 autolaunching
  was disabled at compile time. That test is not expected to work
  in that configuration. (fd.o #98665, Simon McVittie)

Simon McVittie, Collabora Ltd.
on behalf of the D-Bus maintainers
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