Description

The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5

http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html

http://www.debian.org/security/2015/dsa-3364

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.5

http://www.openwall.com/lists/oss-security/2015/08/18/3

http://www.securityfocus.com/bid/76400

http://www.securitytracker.com/id/1033666

http://www.ubuntu.com/usn/USN-2748-1

http://www.ubuntu.com/usn/USN-2749-1

http://www.ubuntu.com/usn/USN-2751-1

http://www.ubuntu.com/usn/USN-2752-1

http://www.ubuntu.com/usn/USN-2759-1

http://www.ubuntu.com/usn/USN-2760-1

http://www.ubuntu.com/usn/USN-2777-1

https://bugzilla.redhat.com/show_bug.cgi?id=1251839

https://github.com/torvalds/linux/commit/7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5

Details

Risk Information

CVSS v2