CVE-2016-6516

HighCVSS 7.4/10Last modified Jun 17, 2026

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 3.0 7.4/10CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119 CWE-362

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20Patch
http://www.openwall.com/lists/oss-security/2016/07/31/6Release Notes
http://www.securityfocus.com/bid/92259
https://bugzilla.redhat.com/show_bug.cgi?id=1362457Issue Tracking, Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20Patch
http://www.openwall.com/lists/oss-security/2016/07/31/6Release Notes
http://www.securityfocus.com/bid/92259
https://bugzilla.redhat.com/show_bug.cgi?id=1362457Issue Tracking, Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20Patch

Timeline

Published: Aug 6, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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