High severity7.8NVD Advisory· Published Dec 28, 2016· Updated Jun 17, 2026

CVE-2016-9806

Description

Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.12,<3.12.62
- (no CPE)range: <4.6.3
osv-coords73 versions
pkg:rpm/suse/kernel-compute_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP1 pkg:rpm/suse/kernel-compute&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP2 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2 pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2012 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP1 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP1 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_12&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_3&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_4&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_6&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_10&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_10&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_11&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_12&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_12&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_13&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_13&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_14&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_14&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_15&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_15&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_16&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_16&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_17&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_17&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_18&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_18&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/kgraft-patch-SLE12_Update_19&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kgraft-patch-SLE12_Update_19&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012
< 3.12.69-60.30.1+ 72 more
- (no CPE)range: < 3.12.69-60.30.1
- (no CPE)range: < 3.12.69-60.30.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.64.29.3
- (no CPE)range: < 4.4.49-92.11.3
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.30.1
- (no CPE)range: < 3.12.69-60.30.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.30.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 4.4.49-92.11.1
- (no CPE)range: < 3.12.69-60.30.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 3.12.61-52.66.1
- (no CPE)range: < 3.12.69-60.64.29.1
- (no CPE)range: < 1-4.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 7-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 1-6.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 7-2.1
- (no CPE)range: < 7-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 5-2.1
- (no CPE)range: < 3-2.1
- (no CPE)range: < 3-2.1
- (no CPE)range: < 2-2.1
- (no CPE)range: < 2-2.1
- (no CPE)range: < 2-2.1
- (no CPE)range: < 2-2.1
- (no CPE)range: < 1-2.1
- (no CPE)range: < 1-2.1

Patches

Vulnerability mechanics

References

git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
www.openwall.com/lists/oss-security/2016/12/03/4nvdMailing ListPatchThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatch
github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520nvdPatchThird Party Advisory
lists.openwall.net/netdev/2016/05/15/69nvdMailing ListThird Party Advisory
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3nvdRelease NotesVendor Advisory
www.securityfocus.com/bid/94653nvdThird Party AdvisoryVDB Entry
www.securitytracker.com/id/1037968nvdThird Party AdvisoryVDB Entry
access.redhat.com/errata/RHSA-2017:1842nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2077nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2669nvdThird Party Advisory
source.android.com/security/bulletin/2017-03-01.htmlnvdThird Party Advisory

News mentions

No linked articles in our index yet.

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000