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.
References (12)
Core 12
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/94653
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1037968
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/12/03/4
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2669
Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://lists.openwall.net/netdev/2016/05/15/69
Patch, Vendor Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2077
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1842
Third Party Advisory x_refsource_confirm
https://source.android.com/security/bulletin/2017-03-01.html
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3
Issue Tracking, Patch x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1401502
Scores
CVSS v3
7.8
EPSS
0.0003
EPSS Percentile
7.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-415
CWE-362
Status
published
Products (1)
linux/linux_kernel
3.12 - 3.12.62
Published
Dec 28, 2016
Tracked Since
Feb 18, 2026