Canonical Outs Major Linux Kernel Updates for All Supported Ubuntu Releases

Available for Ubuntu 19.04 (Disco Dingo), Ubuntu 18.04 LTS (Bionic Beaver), Ubuntu 16.04 LTS (Xenial Xerus), and Ubuntu 14.04 ESM (Trusty Tahr), the new Linux kernel security updates are here to patch more than 30 security vulnerabilities, including a heap buffer overflow discovered in the Marvell Wireless LAN device driver and a NULL pointer dereference discovered in the Near-field communication (NFC) implementation. The security patch also addresses a use-after-free vulnerability discovered by Google Project Zero’s Jann Horn in the Linux kernel when accessing LDT entries, as well as a race condition when performing core dumps. A flaw discovered by Andrei Vlad Lutas and Dan Lutas in x86 processors, which incorrectly handled SWAPGS instructions during speculative execution, was fixed as well.