Please backport fix to reference leak in cgroup blkio throttle
Bug #1683976 reported by
Chunwei Chen
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Trusty |
Fix Released
|
Medium
|
Unassigned | ||
Xenial |
Fix Released
|
Medium
|
Unassigned |
Bug Description
This is fixed in Linux 4.5
https:/
Basically the module reference will leak whenever you write to /sys/fs/
$ uname -a
Linux david-kvm 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ lsmod | grep ^zfs
zfs 2813952 1
$ sudo sh -c 'i=100; while [ $i -gt 0 ]; do echo "230:0 1024" > /sys/fs/
$ lsmod | grep ^zfs
zfs 2813952 101
This patch should be applied to all kernel < 4.5
Thanks
CVE References
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Incomplete → Triaged |
Changed in linux (Ubuntu Xenial): | |
status: | New → Triaged |
importance: | Undecided → Medium |
tags: | added: kernel-da-key xenial |
Changed in linux (Ubuntu Trusty): | |
status: | New → In Progress |
Changed in linux (Ubuntu): | |
status: | Triaged → In Progress |
Changed in linux (Ubuntu Xenial): | |
status: | Triaged → In Progress |
Changed in linux (Ubuntu Trusty): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
Changed in linux (Ubuntu Trusty): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
Changed in linux (Ubuntu Xenial): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
tags: | added: trusty |
Changed in linux (Ubuntu Trusty): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Xenial): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu): | |
status: | In Progress → Fix Released |
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This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1683976
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.