Public bug reported: There is a big memory leak bug in Samba 4.1 - 4.7.6. Depending on the circumstances all memory of the Ubuntu server will be eaten by Samba sooner or later. Then Linux Oom - killer will kill Samba which will either restart or hang.
On our Ubuntu Server 14.04.5 I need to restart Samba 1 - 2 times a week. This bug probably affects also Ubuntu 18.04 if this fix has not yet been backported. This bug has been fixed upstream in Samba 4.7.7. The fix is only two lines of code and is caused by a misplaced "if" when releasing memory. This upstream commit fixes the bug: https://gitlab.com/samba- team/samba/commit/461a1172ff819692aa0a2dc5ce7fc5379c8a529e This is the Samba bug report: https://bugzilla.samba.org/show_bug.cgi?id=13372 And here the author apologizes for the bug :) https://lists.samba.org/archive/samba-technical/2018-April/126937.html Please backport this fix to Ubuntu 14.04 and 18.04, thanks :) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: samba 2:4.3.11+dfsg-0ubuntu0.14.04.19 ProcVersionSignature: Ubuntu 3.13.0-164.214-generic 3.13.11-ckt39 Uname: Linux 3.13.0-164-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.29 Architecture: amd64 BothFailedConnect: Yes Date: Mon Feb 4 11:34:06 2019 InstallationDate: Installed on 2014-09-25 (1592 days ago) InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3) SambaServerRegression: Yes SmbConfIncluded: No SourcePackage: samba UpgradeStatus: No upgrade log present (probably fresh install) upstart.samba-ad-dc.override: manual ** Affects: samba (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1814532 Title: Big samba memory leak fixed upstream To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1814532/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
