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CVE-2016-6516 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.4 HIGHVector: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

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20 CVEPatch
https://bugzilla.redhat.com/show_bug.cgi?id=1362457 CVEIssue TrackingThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20 CVEPatch
http://www.openwall.com/lists/oss-security/2016/07/31/6 CVERelease Notes
http://www.securityfocus.com/bid/92259 CVE

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')[email protected]

Affected Products

ProductVersions
linux linux kernel
<= 4.7

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2016-6516
NVD Published Date:
Aug 6, 2016
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2016-6516 Details - Not Deferred