01 Record

CVE-2016-6516

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

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.94% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 60.7% of scored records. A rank, not a probability.
NVD base score: 7.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2016-08-06 20:00Z10 YR AGO

Last updated

2024-08-06 01:29Z2 YR AGO

Reserved

2016-08-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

6fc7104890f3536d66a54ca9e4657e36c5e0e1e24489265fad0ff589733feac2

05 Affected products

VendorProductVersionsPlatforms

linuxlinux_kernelNot specified—

redhatenterprise_linuxNot specified—

redhatenterprise_mrgNot specified—

06 References

github.comhttps://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20x_refsource_CONFIRM
www.securityfocus.com92259http://www.securityfocus.com/bid/92259vdb-entryx_refsource_BID
www.openwall.com[oss-security] 20160731 CVE Request: Linux <= 4.5 double fetch leading to heap overflowhttp://www.openwall.com/lists/oss-security/2016/07/31/6mailing-listx_refsource_MLIST
git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20x_refsource_CONFIRM
bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1362457x_refsource_CONFIRM

07 Fixed in

Debian 12

linux
Fixed in 4.7.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 4.7.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 4.7.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.