** Description changed: - I noticed this in my logs. It's not obviously broken anything, but - segfaults are bad so I thought it worth reporting. + [Impact] + libaccountsservice contains a double free which under certain circumstances will cause accounts-daemon to segfault, and under other circumstances will cause gdm to segfault when a user account is added or removed. + + [Test case] + In a precise machine with kerberos authentication, adding a new user via "sudo adduser test" will cause an X session running under GDM to crash with a segfault. + + Once the patch is applied, running the same command line should not + affect a running X session. For the test to have value, the session + needs to have been started after the new accountsservice packages were + installed. + + [Possible regressions] + This is just one line removing a double free that has been applied upstream for 16 months, so the code itself should be fine. To be certain that everything is alright, not only gdm but also lightdm should be tested. + + [Original description] + I noticed this in my logs. It's not obviously broken anything, but segfaults are bad so I thought it worth reporting. May 25 14:16:16 e102475-lin gdm-session-worker[2198]: AccountsService-WARNING: SetLanguage call failed: not access to HOME yet so language not saved May 25 14:16:17 e102475-lin kernel: [ 6288.041531] accounts-daemon[2200]: segfault at 596fa6 ip 00007f283fad1e40 sp 00007fff221eb4e0 error 4 in libc-2.15.so[7f$ M - --- + --- ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 DistroRelease: Ubuntu 12.04 Package: accountsservice 0.6.15-2ubuntu9 PackageArchitecture: amd64 ProcEnviron: - TERM=xterm - PATH=(custom, no user) - LANG=en_GB.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + LANG=en_GB.UTF-8 + SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Tags: precise third-party-packages Uname: Linux 3.2.0-24-generic x86_64 UpgradeStatus: Upgraded to precise on 2011-11-09 (197 days ago) UserGroups: adm fuse sbuild sudo
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1004515 Title: segfault in accounts-daemon when logging in / gdm crash if user account is added or deleted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1004515/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
