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OpenAdvisories
High USN-5691-1 4 CVEs

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

Published Oct 19, 2022 · Updated Jun 3, 2026

Summary

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)

Fixed packages 18

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux-aws-5.4 5.4.0-1088.96~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-azure-5.4 5.4.0-1094.100~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-5.4 5.4.0-1092.101~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-hwe-5.4 5.4.0-131.147~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-ibm-5.4 5.4.0-1036.41~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle-5.4 5.4.0-1086.95~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi-5.4 5.4.0-1073.84~18.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux 5.4.0-131.147
Ubuntu · 20.04 LTS 20.04:LTS linux-aws 5.4.0-1088.96
Ubuntu · 20.04 LTS 20.04:LTS linux-azure 5.4.0-1094.100
Ubuntu · 20.04 LTS 20.04:LTS linux-bluefield 5.4.0-1049.55
Ubuntu · 20.04 LTS 20.04:LTS linux-gcp 5.4.0-1092.101
Ubuntu · 20.04 LTS 20.04:LTS linux-gke 5.4.0-1086.93
Ubuntu · 20.04 LTS 20.04:LTS linux-gkeop 5.4.0-1056.60
Ubuntu · 20.04 LTS 20.04:LTS linux-ibm 5.4.0-1036.41
Ubuntu · 20.04 LTS 20.04:LTS linux-kvm 5.4.0-1078.84
Ubuntu · 20.04 LTS 20.04:LTS linux-oracle 5.4.0-1086.95
Ubuntu · 20.04 LTS 20.04:LTS linux-raspi 5.4.0-1073.84

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2022-2602
  • report
    https://ubuntu.com/security/CVE-2022-41674
  • report
    https://ubuntu.com/security/CVE-2022-42720
  • report
    https://ubuntu.com/security/CVE-2022-42721