Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.
First Last Prev Next    This bug is not in your last search results.
Bug 1549421 - (CVE-2017-18193) CVE-2017-18193 kernel: Mishandled extent trees in fs/f2fs/extent_cache.c can allow a local user to cause a denial of service
CVE-2017-18193 kernel: Mishandled extent trees in fs/f2fs/extent_cache.c can ...
Status: CLOSED NOTABUG
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=20180222,reported=2...
: Security
Depends On: 1550994
Blocks: 1549422
  Show dependency tree / graph
 
Reported: 2018-02-26 23:18 EST by Sam Fowler
Modified: 2018-03-13 13:21 EDT (History)
27 users (show)

See Also:
Fixed In Version: kernel 4.13
Doc Type: If docs needed, set a value
Doc Text:
fs/f2fs/extent_cache.c in the Linux kernel, before 4.13, mishandles extent trees. This allows local users to cause a denial of service via an application with multiple threads.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2018-03-02 09:03:32 EST
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.)

  None (edit)
Description Sam Fowler 2018-02-26 23:18:56 EST 
fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users to cause a denial of service via an application with multiple threads.

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dad48e73127ba10279ea33e6dbc8d3905c4d31c0
Comment 2 Vladis Dronov 2018-03-02 09:00:03 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1550994]
Comment 4 Vladis Dronov 2018-03-02 09:03:32 EST 
Statement:

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not built and shipped in the products listed.
Comment 5 Justin M. Forbes 2018-03-02 16:19:23 EST 
This issue was fixed for Fedora with the 4.13 kernel rebases.
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.