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Bug 1552867 - (CVE-2018-7740) CVE-2018-7740 kernel: Denial of service in resv_map_release function in mm/hugetlb.c
CVE-2018-7740 kernel: Denial of service in resv_map_release function in mm/hu...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20180307,reported=2...
: Reopened, Security
Depends On: 1553000 1553007 1553009 1552868 1552992 1552993 1552994 1552995 1552996 1552997 1552998 1552999 1553001 1553002 1553005 1553006 1553008 1553010 1563927
Blocks: 1552870
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Reported: 2018-03-07 16:11 EST by Pedro Sampaio
Modified: 2018-10-30 03:38 EDT (History)
47 users (show)

See Also:
Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
The resv_map_release function in mm/hugetlb.c in the Linux kernel, through 4.15.7, allows local users to cause a denial of service (BUG) via a crafted application that makes mmap system calls and has a large pgoff argument to the remap_file_pages system call.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2018-03-27 23:21:21 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3083 None None None 2018-10-30 03:32 EDT
Red Hat Product Errata RHSA-2018:3096 None None None 2018-10-30 03:38 EDT

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Description Pedro Sampaio 2018-03-07 16:11:05 EST 
The resv_map_release function in mm/hugetlb.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (BUG) via a crafted application that makes mmap system calls and has a large pgoff argument to the remap_file_pages system call.

Upsteam bug:

https://bugzilla.kernel.org/show_bug.cgi?id=199037
Comment 1 Pedro Sampaio 2018-03-07 16:12:19 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1552868]
Comment 13 Justin M. Forbes 2018-05-04 13:00:37 EDT 
This was fixed for fedora with 4.16.3 stable updates
Comment 14 errata-xmlrpc 2018-10-30 03:31:50 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3083
Comment 15 errata-xmlrpc 2018-10-30 03:37:52 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2018:3096
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