The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel through 4.6.3 does not properly copy a certain string, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5d2be1422e02ccd697ccfcd45c85b4a26e6178e2
www.debian.org/security/2016/dsa-3607
www.openwall.com/lists/oss-security/2016/06/03/4
www.securityfocus.com/bid/91334
www.ubuntu.com/usn/USN-3049-1
www.ubuntu.com/usn/USN-3050-1
www.ubuntu.com/usn/USN-3051-1
www.ubuntu.com/usn/USN-3052-1
www.ubuntu.com/usn/USN-3053-1
www.ubuntu.com/usn/USN-3054-1
www.ubuntu.com/usn/USN-3055-1
www.ubuntu.com/usn/USN-3056-1
www.ubuntu.com/usn/USN-3057-1
bugzilla.redhat.com/show_bug.cgi?id=1343335
github.com/torvalds/linux/commit/5d2be1422e02ccd697ccfcd45c85b4a26e6178e2
patchwork.ozlabs.org/patch/629100/