USN-2908-5: Linux kernel (Wily HWE) regression Ubuntu Security Notice USN-2908-5 27th February, 2016 linux-lts-wily regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary USN-2908-2 introduced a regression in the Ubuntu 15.10 Linux kernel backported to Ubuntu 14.04 LTS. Software description linux-lts-wily – Linux hardware enablement kernel from Wily for Trusty Details USN-2908-2 fixed vulnerabilities in the Ubuntu 15.10 Linux kernelbackported to Ubuntu 14.04 LTS. An incorrect locking fix caused aregression that broke graphics displays for Ubuntu 14.04 LTS guestsrunning the Ubuntu 15.10 backport kernel within VMWare virtualmachines. This update fixes the problem. We apologize for the inconvenience. Original advisory details: halfdog discovered that OverlayFS, when mounting on top of a FUSE mount, incorrectly propagated file attributes, including setuid. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1576) halfdog discovered that OverlayFS [ more… ]