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Vulnerability record · CVE-2016-8655 · published 8 December 2016

CVE-2016-8655: Linux kernel race condition vulnerability

Linux · Linux Kernel

Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.

7.8 CVSS 3.1 High EPSS 11% · top 4.2% CWE-362 · Race conditionCWE-416 · Use after free
7.8CVSS 3.1 base score, v2 7.2
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
68References
17 Jun 2026Last modified by NVD

Description

Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac7260236a49c79eede91617700174c2c19b0c PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00070.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00073.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00076.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00077.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00087.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/140063/Linux-Kernel-4.4.0-AF_PACKET-Race-Condition-Privilege-Escalation.html Third Party AdvisoryVDB Entry
http://rhn.redhat.com/errata/RHSA-2017-0386.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0387.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0402.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/06/1 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/94692 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037403 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037968 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3149-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3149-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-3150-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3150-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-3151-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3151-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-3151-3 Third Party Advisory
http://www.ubuntu.com/usn/USN-3151-4 Third Party Advisory
http://www.ubuntu.com/usn/USN-3152-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3152-2 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1400019 Issue TrackingThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/84ac7260236a49c79eede91617700174c2c19b0c PatchThird Party Advisory
https://source.android.com/security/bulletin/2017-03-01.html Third Party Advisory
https://www.exploit-db.com/exploits/40871/ Third Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/44696/ Third Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac7260236a49c79eede91617700174c2c19b0c PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00044.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00054.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00055.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00056.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00067.html Mailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-8655), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.