Ubuntu Security Notice USN-5117-1

Ubuntu Security Notice 5117-1 - It was discovered that the btrfs file system in the Linux kernel did not properly handle removing a non-existent device id. An attacker with CAP_SYS_ADMIN could use this to cause a denial of service. It was discovered that the Qualcomm IPC Router protocol implementation in the Linux kernel did not properly validate metadata in some situations. A local attacker could use this to cause a denial of service or expose sensitive information. Various other issues were also addressed.