USN-6699-1: Linux kernel vulnerabilities

Reima Ishii discovered that the nested KVM implementation for Intel x86
processors in the Linux kernel did not properly validate control registers
in certain situations. An attacker in a guest VM could use this to cause a
denial of service (guest crash). (CVE-2023-30456)

It was discovered that the Quick Fair Queueing scheduler implementation in
the Linux kernel did not properly handle network packets in certain
conditions, leading to a use after free vulnerability. A local attacker
could use this to …

attacker control crash cve denial of service fair implementation intel intel x86 kernel kvm linux linux kernel linux kernel vulnerabilities nested processors scheduler service usn vulnerabilities x86