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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.securityfocus.com/bid/94653 ↗
- http://www.securitytracker.com/id/1037968 ↗
- http://www.openwall.com/lists/oss-security/2016/12/03/4 ↗
- https://access.redhat.com/errata/RHSA-2017:2669 ↗
- https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520 ↗
- http://lists.openwall.net/netdev/2016/05/15/69 ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520 ↗
- https://access.redhat.com/errata/RHSA-2017:2077 ↗
- https://access.redhat.com/errata/RHSA-2017:1842 ↗
- https://source.android.com/security/bulletin/2017-03-01.html ↗
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1401502 ↗