This bug was fixed in the package linux - 4.8.0-30.32
---------------
linux (4.8.0-30.32) yakkety; urgency=low
* CVE-2016-8655 (LP: #1646318)
- packet: fix race condition in packet_set_ring
-- Brad Figg <brad.f...@canonical.com> Thu, 01 Dec 2016 08:02:53 -0800
** Changed in: linux (Ubuntu Zesty)
Status: Fix Committed => Fix Released
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-8655
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https://bugs.launchpad.net/bugs/1636847
Title:
unexpectedly large memory usage of mounted snaps
Status in Snappy:
In Progress
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Released
Status in linux source package in Yakkety:
Fix Released
Status in linux source package in Zesty:
Fix Released
Bug description:
This is a tracking bug for what might be kernel bugs or kernel
configuration changes.
As described [1], memory used by simply mounting a squashfs file (even
an empty one) is ranging from almost nothing (on certain
distributions) to 131MB on Ubuntu 16.04 and 16.10 on a single-core
machine or VM.
The amount is excessive and should be investigated by the kernel team.
We may need to change the kernel or at least the configuration we ship
in our packages and kernel snaps.
[1] https://github.com/zyga/mounted-fs-memory-checker
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