Race condition in the vop_ioctl function in drivers/misc/mic/vop/vop_vringh.c in the MIC VOP driver in the Linux kernel before 4.6.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (memory corruption and system crash) by changing a certain header, aka a “double fetch” vulnerability.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9bf292bfca94694a721449e3fd752493856710f6
www.debian.org/security/2016/dsa-3616
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1
www.securityfocus.com/archive/1/538802/30/0/threaded
www.ubuntu.com/usn/USN-3070-1
www.ubuntu.com/usn/USN-3070-2
www.ubuntu.com/usn/USN-3070-3
www.ubuntu.com/usn/USN-3070-4
www.ubuntu.com/usn/USN-3071-1
www.ubuntu.com/usn/USN-3071-2
bugzilla.kernel.org/show_bug.cgi?id=116651
github.com/torvalds/linux/commit/9bf292bfca94694a721449e3fd752493856710f6