USN-8919-1: Linux kernel vulnerabilities

Published Oct 13, 2026
·
Updated

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

Affected Software

133 affected componentsFixes available
Ubuntu Linux kernel
All of the following
ubuntu/linux-image-5.4.0-1069-iot<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1083-xilinx-zynqmp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1139-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1148-raspi<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1152-kvm<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1163-oracle<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1165-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1168-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1168-gcp-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1170-azure<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-242-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-242-generic-lpae<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-242-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws-lts-20.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-azure-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-azure-lts-20.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-fips-5.4<FIPS-140
FIPS-140
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp-fips<FIPS-140
FIPS-140
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp-fips-5.4<FIPS-140
FIPS-140
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp-lts-20.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-kvm<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-kvm-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem-osp1<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oracle-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oracle-lts-20.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-raspi<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-raspi-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-raspi2<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-xilinx-zynqmp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-xilinx-zynqmp-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1148-raspi<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1163-oracle<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1168-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1170-azure<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-242-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-242-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-azure<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-azure-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oem<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oem-osp1<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oracle<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oracle-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-raspi-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-raspi-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-snapdragon-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-snapdragon-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-virtual-5.4<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-virtual-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1069-iot to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  2. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1083-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  3. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1139-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  4. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1148-raspi to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  5. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1152-kvm to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  6. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1163-oracle to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  7. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1165-aws to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  8. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1168-gcp to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  9. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1168-gcp-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  10. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1170-azure to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  11. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-242-generic to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  12. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-242-generic-lpae to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  13. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-242-lowlatency to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  14. Upgrade

    Upgrade ubuntu/linux-image-aws-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  15. Upgrade

    Upgrade ubuntu/linux-image-aws-lts-20.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  16. Upgrade

    Upgrade ubuntu/linux-image-azure-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  17. Upgrade

    Upgrade ubuntu/linux-image-azure-lts-20.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  18. Upgrade

    Upgrade ubuntu/linux-image-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  19. Upgrade

    Upgrade ubuntu/linux-image-fips-5.4 to a version that resolves this vulnerability.

    Fixed in FIPS-140
  20. Upgrade

    Upgrade ubuntu/linux-image-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  21. Upgrade

    Upgrade ubuntu/linux-image-gcp-fips to a version that resolves this vulnerability.

    Fixed in FIPS-140
  22. Upgrade

    Upgrade ubuntu/linux-image-gcp-fips-5.4 to a version that resolves this vulnerability.

    Fixed in FIPS-140
  23. Upgrade

    Upgrade ubuntu/linux-image-gcp-lts-20.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  24. Upgrade

    Upgrade ubuntu/linux-image-generic to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  25. Upgrade

    Upgrade ubuntu/linux-image-generic-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  26. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  27. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  28. Upgrade

    Upgrade ubuntu/linux-image-kvm to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  29. Upgrade

    Upgrade ubuntu/linux-image-kvm-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  30. Upgrade

    Upgrade ubuntu/linux-image-lowlatency to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  31. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  32. Upgrade

    Upgrade ubuntu/linux-image-oem to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  33. Upgrade

    Upgrade ubuntu/linux-image-oem-osp1 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  34. Upgrade

    Upgrade ubuntu/linux-image-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  35. Upgrade

    Upgrade ubuntu/linux-image-oracle-lts-20.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  36. Upgrade

    Upgrade ubuntu/linux-image-raspi to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  37. Upgrade

    Upgrade ubuntu/linux-image-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  38. Upgrade

    Upgrade ubuntu/linux-image-raspi2 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  39. Upgrade

    Upgrade ubuntu/linux-image-virtual to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  40. Upgrade

    Upgrade ubuntu/linux-image-virtual-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  41. Upgrade

    Upgrade ubuntu/linux-image-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  42. Upgrade

    Upgrade ubuntu/linux-image-xilinx-zynqmp-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  43. Upgrade

    Upgrade ubuntu/linux-image-azure to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  44. Upgrade

    Upgrade ubuntu/linux-image-gcp to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  45. Upgrade

    Upgrade ubuntu/linux-image-generic-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  46. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  47. Upgrade

    Upgrade ubuntu/linux-image-oracle to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  48. Upgrade

    Upgrade ubuntu/linux-image-raspi-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  49. Upgrade

    Upgrade ubuntu/linux-image-snapdragon-5.4 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  50. Upgrade

    Upgrade ubuntu/linux-image-snapdragon-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  51. Upgrade

    Upgrade ubuntu/linux-image-virtual-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  52. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch USN-8919-1

Event History

Oct 13, 2026
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Company

Resources

Contact

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