[Bug 1564976] Re: systemd-udevd crashed with SIGSEGV with rules file appending large number of tags

Fri Apr 8 10:11:33 UTC 2016

This bug was fixed in the package systemd - 229-4ubuntu1

---------------
systemd (229-4ubuntu1) xenial; urgency=medium

  * Merge with Debian unstable. Remaining Ubuntu changes:
    - Hack to support system-image read-only /etc, and modify files in
      /etc/writable/ instead.

    Upgrade fixes, keep until 16.04 LTS release:
    - systemd Conflicts/Replaces/Provides systemd-services.
    - Remove obsolete systemd-logind upstart job.
    - Clean up obsolete /etc/udev/rules.d/README.
    - systemd.postinst: Migrate mountall specific fstab options to standard
      util-linux "nofail" option.
    - systemctl: Don't forward telinit u to upstart. This works around
      upstart's Restart() always reexec'ing /sbin/init on Restart(), even if
      that changes to point to systemd during the upgrade. This avoids running
      systemd during a dist-upgrade. (LP: #1430479)
    - Provide shutdown fallback for upstart. (LP: #1370329)
    - Break lvm (<< 2.02.133-1ubuntu1) and remove our dummy /etc/init.d/lvm2
      on upgrades, as it's shipped by lvm2 now.
    - Make udev break on mdadm << 3.3-2ubuntu3, as udev's init script dropped
      the "Provides: raid-mdadm".
    - Clean up /var/log/udev on upgrade (which is written under upstart, but
      not under systemd). (LP: #1537211)
    - Migrate existing s390x network configuration to new names. (LP: #1526808)
    - systemd.postinst: Bump Version comparison for migrating the UTC setting
      from /etc/default/rcS to /etc/adjtime, to run it for upgrades to 16.04.
    - VMWare BIOS reports implausibly high onboard numbers. This got fixed in
      upstream commit 6c1e69f9. Migrate names in ifupdown accordingly.
      (LP: #1550539)
    - udev: Don't kill peer processes if we don't run in a cgroup. This happens
      when running under/upgrading from upstart. udevd and everything else run
      in the root hierarchy on all controllers then, and the alleged cleanup of
      "our" cgroup becomes a system-wide killing spree. (LP: #1555237)

systemd (229-4) unstable; urgency=medium

  * Fix assertion crash when processing a (broken) device without a sysfs
    path. (Closes: #819290, LP: #1560695)
  * Fix crash when shutdown is issued from a non-tty. (LP: #1553040)
  * networkd: Stay running while any non-loopback interface is up.
    (Closes: #819414)
  * Fix reading uint32 D-Bus properties on big-endian.
  * Fix crash if an udev device has many tags or devlinks. (LP: #1564976)
  * systemctl, loginctl, etc.: Don't start polkit agent when running as root.
    (LP: #1565617)
  * keymap: Add Add HP ZBook (LP: #1535219) and HP ProBook 440 G3.
  * systemd.resource-control.5: Fix links to cgroup documentation on
    kernel.org. (Closes: #819970)
  * Install test-udev into libudev-dev, so that we have it available for
    autopkgtests.
  * Add "udev" autopkgtest for running the upstream test/udev-test.pl.

 -- Martin Pitt <martin.pitt at ubuntu.com>  Thu, 07 Apr 2016 09:53:25
+0200

** Changed in: systemd (Ubuntu)
       Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1564976

Title:
  systemd-udevd crashed with SIGSEGV with rules file appending large
  number of tags

Status in systemd package in Ubuntu:
  Fix Released

Bug description:
  I was doing some testing and found that if I create /etc/udev/rules.d/70-test.rules with:
  KERNEL=="kmsg", TAG+="test.some-test-name.1"
  KERNEL=="kmsg", TAG+="test.some-test-name.2"
  ...
  KERNEL=="kmsg", TAG+="test.some-test-name.10000"

  Then run: 'sudo udevadm trigger', I could reliably trigger this crash.

  for i in `seq 10000`; do printf 'KERNEL=="kmsg", TAG+="test%i"\n' $i; done > /etc/udev/rules.d/70-manytags.rules

  ProblemType: Crash
  DistroRelease: Ubuntu 16.04
  Package: udev 229-3ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-16.32-generic 4.4.6
  Uname: Linux 4.4.0-16-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  CrashCounter: 1
  CustomUdevRuleFiles: 70-snappy-baz.norf.rules 70-snappy-hello-world.rules 70-snappy_hwassign_hello-world.rules 70-snappy-foo.bar.rules
  Date: Fri Apr  1 10:48:50 2016
  ExecutablePath: /lib/systemd/systemd-udevd
  InstallationDate: Installed on 2015-06-13 (292 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Dell Inc. XPS 13 9343
  ProcCmdline: /lib/systemd/systemd-udevd
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-16-generic.efi.signed root=UUID=7bc4dcd2-0bd8-4e42-b8b7-9f1ed6b8a3e9 ro libata.force=noncq kaslr quiet splash vt.handoff=7
  Signal: 11
  SourcePackage: systemd
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ?? ()
   ?? ()
  Title: systemd-udevd crashed with SIGSEGV
  UpgradeStatus: Upgraded to xenial on 2016-01-12 (80 days ago)
  UserGroups:

  dmi.bios.date: 11/11/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0310JH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/11/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1564976/+subscriptions