CVE-2015-7872

NONECVSS 0.0

0.0

The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel through 4.2.6 allows local users to cause a denial of service (OOPS) via crafted keyctl commands.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 21.5%
KEV: Not listed

Published

November 16, 2015

Last Modified

May 6, 2026

References (92)

secalert@redhathttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce1fad2740c648a4340f6f6c391a8a83769d2e8c
secalert@redhathttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html

Patch Availability(14)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-image-4.2.0-1016-raspi2 (4.2.0-1016.23) @ wily	2026-05-22	ubuntu
ubuntu	linux-image-3.13.0-71-generic (3.13.0-71.114~precise1) @ precise	2026-05-22	ubuntu
ubuntu	linux-image-extra-3.16.0-55-generic (3.16.0-55.74~14.04.1) @ trusty	2026-05-22	ubuntu
ubuntu	linux-image-extra-3.19.0-39-generic (3.19.0-39.44~14.04.1) @ trusty	2026-05-22	ubuntu
ubuntu	linux-image-3.2.0-1475-omap4 (3.2.0-1475.97) @ precise	2026-05-22	ubuntu
ubuntu	linux-image-3.19.0-39-lowlatency (3.19.0-39.44) @ vivid	2026-05-22	ubuntu
ubuntu	linux-image-4.2.0-21-powerpc64-smp (4.2.0-21.25) @ wily	2026-05-22	ubuntu
ubuntu	linux-image-extra-4.2.0-21-generic (4.2.0-21.25~14.04.1) @ trusty	2026-05-22	ubuntu
ubuntu	linux-image-3.2.0-96-powerpc64-smp (3.2.0-96.136) @ precise	2026-05-22	ubuntu
ubuntu	linux-image-extra-3.13.0-71-generic (3.13.0-71.114) @ trusty	2026-05-22	ubuntu
redhat	kernel-rt-0:3.10.0-327.10.1.rt56.211.el7_2	2016-02-16	redhat
redhat	kernel-rt-1:3.10.0-327.rt56.171.el6rt	2016-02-16	redhat
redhat	kernel-0:3.10.0-327.10.1.el7	2016-02-16	redhat
redhat	kernel-0:2.6.32-573.12.1.el6	2015-12-15	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(14)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-07 02:59 UTCOSV refresh
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore
2026-05-26 07:16 UTCEPSS rescore

Frequently asked(4)

What is CVE-2015-7872?

CVE-2015-7872 is a none vulnerability published on November 16, 2015. The keygcunused_keys function in security/keys/gc.c in the Linux kernel through 4.2.6 allows local users to cause a denial of service (OOPS) via crafted keyctl commands.

When was CVE-2015-7872 disclosed?

CVE-2015-7872 was first published in the National Vulnerability Database on November 16, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-7872 actively exploited?

CVE-2015-7872 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2015-7872?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-7872, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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