Ubuntu Security Notice 1433-1 - A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Various other issues were also addressed.
d91c996ccff95c6d7dd3c3aa09f0a4d61c622e96df26b9dd2000e3472ca4feec