USN-5135-1: Linux kernel vulnerability

Published Nov 9, 2021
·
Updated

It was discovered that the Linux kernel did not properly account for the memory usage of certain IPC objects. A local attacker could use this to cause a denial of service (memory exhaustion).

Affected Software

138 affected componentsFixes available
All of the following
ubuntu/linux-image-virtual<5.13.0.21.32
5.13.0.21.32
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-21-generic<5.13.0-21.21
5.13.0-21.21
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-generic<5.13.0.21.32
5.13.0.21.32
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1005-kvm<5.13.0-1005.5
5.13.0-1005.5
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-aws<5.13.0.1006.8
5.13.0.1006.8
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1010-raspi<5.13.0-1010.12
5.13.0-1010.12
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-raspi-nolpae<5.13.0.1010.16
5.13.0.1010.16
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-azure<5.13.0.1007.8
5.13.0.1007.8
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-oem-20.04<5.13.0.21.32
5.13.0.21.32
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1007-azure<5.13.0-1007.8
5.13.0-1007.8
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-gke<5.13.0.1006.7
5.13.0.1006.7
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-gcp<5.13.0.1006.7
5.13.0.1006.7
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1009-oracle<5.13.0-1009.11
5.13.0-1009.11
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-21-generic-64k<5.13.0-21.21
5.13.0-21.21
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1006-gcp<5.13.0-1006.7
5.13.0-1006.7
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-oracle<5.13.0.1009.11
5.13.0.1009.11
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-raspi<5.13.0.1010.16
5.13.0.1010.16
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1010-raspi-nolpae<5.13.0-1010.12
5.13.0-1010.12
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-21-lowlatency<5.13.0-21.21
5.13.0-21.21
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-21-generic-lpae<5.13.0-21.21
5.13.0-21.21
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-kvm<5.13.0.1005.5
5.13.0.1005.5
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-generic-lpae<5.13.0.21.32
5.13.0.21.32
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1006-aws<5.13.0-1006.7
5.13.0-1006.7
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-generic-64k<5.13.0.21.32
5.13.0.21.32
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-lowlatency<5.13.0.21.32
5.13.0.21.32
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.11.0-40-generic-lpae<5.11.0-40.44
5.11.0-40.44
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-40-lowlatency<5.11.0-40.44
5.11.0-40.44
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1019-kvm<5.11.0-1019.21
5.11.0-1019.21
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-virtual<5.11.0.40.41
5.11.0.40.41
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-generic-64k<5.11.0.40.41
5.11.0.40.41
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-generic<5.11.0.40.41
5.11.0.40.41
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-aws<5.11.0.1021.22
5.11.0.1021.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1022-raspi<5.11.0-1022.24
5.11.0-1022.24
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1021-aws<5.11.0-1021.22
5.11.0-1021.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-azure<5.11.0.1021.22
5.11.0.1021.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-raspi-nolpae<5.11.0.1022.20
5.11.0.1022.20
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-oem-20.04<5.11.0.40.41
5.11.0.40.41
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-gke<5.11.0.1022.22
5.11.0.1022.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-gcp<5.11.0.1022.22
5.11.0.1022.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1022-raspi-nolpae<5.11.0-1022.24
5.11.0-1022.24
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-40-generic-64k<5.11.0-40.44
5.11.0-40.44
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1021-oracle<5.11.0-1021.22
5.11.0-1021.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-oracle<5.11.0.1021.22
5.11.0.1021.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1022-gcp<5.11.0-1022.24
5.11.0-1022.24
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-raspi<5.11.0.1022.20
5.11.0.1022.20
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-1021-azure<5.11.0-1021.22
5.11.0-1021.22
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-kvm<5.11.0.1019.20
5.11.0.1019.20
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-generic-lpae<5.11.0.40.41
5.11.0.40.41
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-40-generic<5.11.0-40.44
5.11.0-40.44
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-lowlatency<5.11.0.40.41
5.11.0.40.41
Ubuntu Ubuntu=21.04
All of the following
ubuntu/linux-image-5.11.0-40-generic-lpae<5.11.0-40.44~20.04.2
5.11.0-40.44~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-40-lowlatency<5.11.0-40.44~20.04.2
5.11.0-40.44~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1021-aws<5.11.0-1021.22~20.04.2
5.11.0-1021.22~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual-hwe-20.04<5.11.0.40.44~20.04.18
5.11.0.40.44~20.04.18
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws<5.11.0.1021.22~20.04.20
5.11.0.1021.22~20.04.20
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency-hwe-20.04<5.11.0.40.44~20.04.18
5.11.0.40.44~20.04.18
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1021-azure<5.11.0-1021.22~20.04.1
5.11.0-1021.22~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem-20.04c<5.13.0.1019.23
5.13.0.1019.23
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-azure<5.11.0.1021.22~20.04.21
5.11.0.1021.22~20.04.21
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.13.0-1019-oem<5.13.0-1019.23
5.13.0-1019.23
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1022-gcp<5.11.0-1022.24~20.04.1
5.11.0-1022.24~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp<5.11.0.1022.24~20.04.21
5.11.0.1022.24~20.04.21
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-40-generic-64k<5.11.0-40.44~20.04.2
5.11.0-40.44~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1021-oracle<5.11.0-1021.22~20.04.1
5.11.0-1021.22~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oracle<5.11.0.1021.22~20.04.14
5.11.0.1021.22~20.04.14
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae-hwe-20.04<5.11.0.40.44~20.04.18
5.11.0.40.44~20.04.18
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-hwe-20.04<5.11.0.40.44~20.04.18
5.11.0.40.44~20.04.18
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-64k-hwe-20.04<5.11.0.40.44~20.04.18
5.11.0.40.44~20.04.18
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-40-generic<5.11.0-40.44~20.04.2
5.11.0-40.44~20.04.2
Ubuntu Ubuntu=20.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 5.13.0.21.32
  2. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-21-generic to a version that resolves this vulnerability.

    Fixed in 5.13.0-21.21
  3. Upgrade

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

    Fixed in 5.13.0.21.32
  4. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1005-kvm to a version that resolves this vulnerability.

    Fixed in 5.13.0-1005.5
  5. Upgrade

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

    Fixed in 5.13.0.1006.8
  6. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1010-raspi to a version that resolves this vulnerability.

    Fixed in 5.13.0-1010.12
  7. Upgrade

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

    Fixed in 5.13.0.1010.16
  8. Upgrade

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

    Fixed in 5.13.0.1007.8
  9. Upgrade

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

    Fixed in 5.13.0.21.32
  10. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1007-azure to a version that resolves this vulnerability.

    Fixed in 5.13.0-1007.8
  11. Upgrade

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

    Fixed in 5.13.0.1006.7
  12. Upgrade

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

    Fixed in 5.13.0.1006.7
  13. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1009-oracle to a version that resolves this vulnerability.

    Fixed in 5.13.0-1009.11
  14. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-21-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.13.0-21.21
  15. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1006-gcp to a version that resolves this vulnerability.

    Fixed in 5.13.0-1006.7
  16. Upgrade

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

    Fixed in 5.13.0.1009.11
  17. Upgrade

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

    Fixed in 5.13.0.1010.16
  18. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1010-raspi-nolpae to a version that resolves this vulnerability.

    Fixed in 5.13.0-1010.12
  19. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-21-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.13.0-21.21
  20. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-21-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.13.0-21.21
  21. Upgrade

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

    Fixed in 5.13.0.1005.5
  22. Upgrade

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

    Fixed in 5.13.0.21.32
  23. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1006-aws to a version that resolves this vulnerability.

    Fixed in 5.13.0-1006.7
  24. Upgrade

    Upgrade ubuntu/linux-image-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.13.0.21.32
  25. Upgrade

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

    Fixed in 5.13.0.21.32
  26. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44
  27. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44
  28. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1019-kvm to a version that resolves this vulnerability.

    Fixed in 5.11.0-1019.21
  29. Upgrade

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

    Fixed in 5.11.0.40.41
  30. Upgrade

    Upgrade ubuntu/linux-image-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.11.0.40.41
  31. Upgrade

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

    Fixed in 5.11.0.40.41
  32. Upgrade

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

    Fixed in 5.11.0.1021.22
  33. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1022-raspi to a version that resolves this vulnerability.

    Fixed in 5.11.0-1022.24
  34. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1021-aws to a version that resolves this vulnerability.

    Fixed in 5.11.0-1021.22
  35. Upgrade

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

    Fixed in 5.11.0.1021.22
  36. Upgrade

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

    Fixed in 5.11.0.1022.20
  37. Upgrade

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

    Fixed in 5.11.0.40.41
  38. Upgrade

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

    Fixed in 5.11.0.1022.22
  39. Upgrade

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

    Fixed in 5.11.0.1022.22
  40. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1022-raspi-nolpae to a version that resolves this vulnerability.

    Fixed in 5.11.0-1022.24
  41. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44
  42. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1021-oracle to a version that resolves this vulnerability.

    Fixed in 5.11.0-1021.22
  43. Upgrade

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

    Fixed in 5.11.0.1021.22
  44. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1022-gcp to a version that resolves this vulnerability.

    Fixed in 5.11.0-1022.24
  45. Upgrade

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

    Fixed in 5.11.0.1022.20
  46. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1021-azure to a version that resolves this vulnerability.

    Fixed in 5.11.0-1021.22
  47. Upgrade

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

    Fixed in 5.11.0.1019.20
  48. Upgrade

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

    Fixed in 5.11.0.40.41
  49. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-generic to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44
  50. Upgrade

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

    Fixed in 5.11.0.40.41
  51. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44~20.04.2
  52. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44~20.04.2
  53. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1021-aws to a version that resolves this vulnerability.

    Fixed in 5.11.0-1021.22~20.04.2
  54. Upgrade

    Upgrade ubuntu/linux-image-virtual-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.11.0.40.44~20.04.18
  55. Upgrade

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

    Fixed in 5.11.0.1021.22~20.04.20
  56. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.11.0.40.44~20.04.18
  57. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1021-azure to a version that resolves this vulnerability.

    Fixed in 5.11.0-1021.22~20.04.1
  58. Upgrade

    Upgrade ubuntu/linux-image-oem-20.04c to a version that resolves this vulnerability.

    Fixed in 5.13.0.1019.23
  59. Upgrade

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

    Fixed in 5.11.0.1021.22~20.04.21
  60. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1019-oem to a version that resolves this vulnerability.

    Fixed in 5.13.0-1019.23
  61. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1022-gcp to a version that resolves this vulnerability.

    Fixed in 5.11.0-1022.24~20.04.1
  62. Upgrade

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

    Fixed in 5.11.0.1022.24~20.04.21
  63. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44~20.04.2
  64. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1021-oracle to a version that resolves this vulnerability.

    Fixed in 5.11.0-1021.22~20.04.1
  65. Upgrade

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

    Fixed in 5.11.0.1021.22~20.04.14
  66. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.11.0.40.44~20.04.18
  67. Upgrade

    Upgrade ubuntu/linux-image-generic-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.11.0.40.44~20.04.18
  68. Upgrade

    Upgrade ubuntu/linux-image-generic-64k-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.11.0.40.44~20.04.18
  69. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-40-generic to a version that resolves this vulnerability.

    Fixed in 5.11.0-40.44~20.04.2

Event History

Nov 9, 2021
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-5135-1?

The severity of USN-5135-1 is significant as it can lead to denial of service due to memory exhaustion.

2

How do I fix USN-5135-1?

To fix USN-5135-1, you should upgrade your affected Linux kernel packages to the recommended versions.

3

Which systems are affected by USN-5135-1?

USN-5135-1 affects Ubuntu 21.10 systems running specific versions of the Linux kernel.

4

What vulnerability does USN-5135-1 address?

USN-5135-1 addresses a vulnerability in the Linux kernel related to improper memory accounting for IPC objects.

5

Can USN-5135-1 be exploited remotely?

No, USN-5135-1 requires local access to exploit the memory exhaustion vulnerability.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203