Linux kernel vulnerabilities

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• linux - Linux kernel
• linux-aws - Linux kernel for Amazon Web Services (AWS) systems
• linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
• linux-azure - Linux kernel for Microsoft Azure Cloud systems
• linux-azure-5.4 - Linux kernel for Microsoft Azure cloud systems
• linux-bluefield - Linux kernel for NVIDIA BlueField platforms
• linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-5.4 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gke - Linux kernel for Google Container Engine (GKE) systems
• linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
• linux-hwe-5.4 - Linux hardware enablement (HWE) kernel
• linux-ibm - Linux kernel for IBM cloud systems
• linux-ibm-5.4 - Linux kernel for IBM cloud systems
• linux-kvm - Linux kernel for cloud environments
• linux-oracle - Linux kernel for Oracle Cloud systems
• linux-oracle-5.4 - Linux kernel for Oracle Cloud systems
• linux-raspi - Linux kernel for Raspberry Pi systems
• linux-raspi-5.4 - Linux kernel for Raspberry Pi systems

Details

David Bouman and Billy Jheng Bing Jhong discovered that a race condition
existed in the io_uring subsystem in the Linux kernel, leading to a use-
after-free vulnerability. A local attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2022-2602)

Sönke Huster discovered that an integer overflow vulnerability existed in
the WiFi driver stack in the Linux kernel, leading to a buffer overflow. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-41674)

Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly perform reference counting in some situations, leading to a
use-after-free vulnerability. A physically proximate attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2022-42720)

Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly handle BSSID/SSID lists in some situations. A physically
proximate attacker could use this to cause a denial of service (infinite
loop). (CVE-2022-42721)