Bug 1392439 (CVE-2016-9191) - CVE-2016-9191 kernel: Local DoS via cgroup offline code
Summary: CVE-2016-9191 kernel: Local DoS via cgroup offline code
Status: CLOSED NOTABUG
Alias: CVE-2016-9191
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20161105,repor...
Keywords: Security
Depends On: 1392440
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-11-07 14:06 UTC by Andrej Nemec
Modified: 2019-06-08 21:34 UTC (History)
29 users (show)

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Clone Of:
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Last Closed: 2019-06-08 03:01:51 UTC


Attachments (Terms of Use)

Description Andrej Nemec 2016-11-07 14:06:16 UTC
A malicious user who can run an arbitrary image with a non-privileged user
in a Container-as-a-service cloud environment could use the exploit to
deadlock the container nodes to deny the service for other users.

This is confirmed to affect the latest mainline kernel (4.9-rc3) using this
kernel config, http://people.redhat.com/qcai/tmp/config-god-4.9rc2
and as old as v3.17. RHEL 7.3 kernel is not affected.

References:

http://seclists.org/oss-sec/2016/q4/340

Comment 1 Andrej Nemec 2016-11-07 14:07:09 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1392440]


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