CVE-2016-6516

7.4 HIGH
Published: August 06, 2016 Modified: May 06, 2026
View on NVD

Description

Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privileges by changing a certain count value, aka a "double fetch" vulnerability.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20
Source: cve@mitre.org
Patch
http://www.openwall.com/lists/oss-security/2016/07/31/6
Source: cve@mitre.org
Release Notes
http://www.securityfocus.com/bid/92259
Source: cve@mitre.org
https://bugzilla.redhat.com/show_bug.cgi?id=1362457
Source: cve@mitre.org
Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20
Source: cve@mitre.org
Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.openwall.com/lists/oss-security/2016/07/31/6
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
http://www.securityfocus.com/bid/92259
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=1362457
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20
Source: af854a3a-2127-422b-91ae-364da2661108
Patch

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.4 / 10.0
EPSS (Exploit Probability)
0.5%
67th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119 CWE-362

Affected Vendors

linux

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