USN-5683-1: Linux kernel (IBM) vulnerabilities

It was discovered that the framebuffer driver on the Linux kernel did not
verify size limits when changing font or screen size, leading to an out-of-
bounds write. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Selim Enes Karaduman discovered that a race condition existed in the
General notification queue implementation of the Linux kernel, leading to a
use-after-free vulnerability. A local attacker could use this to cause …

ibm kernel linux linux kernel vulnerabilities