Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.
First Last Prev Next    This bug is not in your last search results.
Bug 1308846 - (CVE-2016-3070) CVE-2016-3070 kernel: Null pointer dereference in trace_writeback_dirty_page()
CVE-2016-3070 kernel: Null pointer dereference in trace_writeback_dirty_page()
Status: ASSIGNED
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
: ---
: ---
Assigned To: Red Hat Product Security
impact=low,public=20160510,reported=2...
: Reopened, Security
Depends On: 1306851 1331967 1331968
Blocks: 1308847
  Show dependency tree / graph
 
Reported: 2016-02-16 04:30 EST by Adam Mariš
Modified: 2018-08-28 18:02 EDT (History)
22 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A security flaw was found in the Linux kernel that an attempt to move page mapped by AIO ring buffer to the other node triggers NULL pointer dereference at trace_writeback_dirty_page(), because aio_fs_backing_dev_info.dev is 0.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2016-03-24 05:26:02 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:2574 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2016-11-03 08:06:10 EDT
Red Hat Product Errata RHSA-2016:2584 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2016-11-03 08:08:49 EDT

  None (edit)
Description Adam Mariš 2016-02-16 04:30:23 EST 
It was reported that attempt to move page mapped by aio ring buffer to other node triggers NULL pointer dereference at trace_writeback_dirty_page(), because aio_fs_backing_dev_info.dev is 0.

Product bug (contains reproducer):

https://bugzilla.redhat.com/show_bug.cgi?id=1306851

Upstream patch:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=42cb14b110a5698ccf26ce59c4441722605a3743
Comment 1 Vladis Dronov 2016-03-23 14:46:40 EDT 
Acknowledgments:

Name: Jan Stancek (Red Hat)
Comment 2 Vladis Dronov 2016-03-23 15:04:52 EDT 
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code with the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future updates for the respective releases may address the issue.
Comment 3 Adam Mariš 2016-03-24 04:53:55 EDT 
Internal CVE assignment: CVE-2016-3070
Comment 8 errata-xmlrpc 2016-11-03 11:35:34 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2574 https://rhn.redhat.com/errata/RHSA-2016-2574.html
Comment 9 errata-xmlrpc 2016-11-03 15:42:22 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2584 https://rhn.redhat.com/errata/RHSA-2016-2584.html
Comment 10 errata-xmlrpc 2016-11-03 17:32:48 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2574 https://rhn.redhat.com/errata/RHSA-2016-2574.html
Comment 11 errata-xmlrpc 2016-11-03 17:47:59 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2584 https://rhn.redhat.com/errata/RHSA-2016-2584.html
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.