CVE-2015-5697 Information

Description

The get_bitmap_file function in drivers/md/md.c in the Linux kernel before 4.1.6 does not initialize a certain bitmap data structure which allows local users to obtain sensitive information from kernel memory via a GET_BITMAP_FILE ioctl call.

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b6878d9e03043695dbf3fa1caa6dfc09db225b16 http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163661.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163711.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164137.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164193.html http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html http://www.debian.org/security/2015/dsa-3329 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6 http://www.openwall.com/lists/oss-security/2015/07/28/2 http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html http://www.securityfocus.com/bid/76066 http://www.securitytracker.com/id/1033211 http://www.ubuntu.com/usn/USN-2731-1 http://www.ubuntu.com/usn/USN-2732-1 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-2777-1 https://bugzilla.redhat.com/show_bug.cgi?id=1249011 https://github.com/torvalds/linux/commit/b6878d9e03043695dbf3fa1caa6dfc09db225b16