CVE-2024-36922: wifi: iwlwifi: read txq->read_ptr under lock

Published May 30, 2024
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: read txq->readptr under lock

If we read txq->readptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARNONCE() a little later. Fix that by reading txq->readptr under lock.

Other sources

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: read txq->readptr under lock

The Linux kernel CVE team has assigned CVE-2024-36922 to this issue.

Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024053039-CVE-2024-36922-f0df@gregkh/T

— Red Hat

Affected Software

179 affected componentsFixes available
Microsoft cbl2 kernel 5.15.186.1-1
redhat/kernel<6.6.31
6.6.31
redhat/kernel<6.8.10
6.8.10
redhat/kernel<6.9
6.9
Linux Linux kernel<6.6.31
Linux Linux kernel>=6.7<6.8.10
Linux Linux kernel=6.9-rc1
debian/linux<6.1.176-1
6.1.176-1
debian/linux<6.8.11-1
6.8.11-1
debian/linux<6.8.11-1
6.8.11-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4*
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4*
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4*
ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4*
ubuntu/linux-raspi-5.4*
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.15<5.15.0-1112.119~20.04.1
5.15.0-1112.119~20.04.1
ubuntu/linux-aws-5.8*
ubuntu/linux-azure*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.15<5.15.0-1117.126~20.04.1
5.15.0-1117.126~20.04.1
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-azure-fde-5.15<5.15.0-1117.126~20.04.2
5.15.0-1117.126~20.04.2
ubuntu/linux-bluefield*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.15<5.15.0-1112.122~20.04.1
5.15.0-1112.122~20.04.1
ubuntu/linux-gcp-5.8*
ubuntu/linux-gke*
ubuntu/linux-gke-5.15*
ubuntu/linux-gkeop*
ubuntu/linux-gkeop-5.15*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.15<5.15.0-186.196~20.04.1
5.15.0-186.196~20.04.1
ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm*
ubuntu/linux-ibm-5.15<5.15.0-1106.110~20.04.1
5.15.0-1106.110~20.04.1
ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15<5.15.0-1107.113~20.04.1
5.15.0-1107.113~20.04.1
ubuntu/linux-iot*
ubuntu/linux-kvm*
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-184.194~20.04.1
5.15.0-184.194~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1064.66~20.04.1
5.15.0-1064.66~20.04.1
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15<5.15.0-1109.115~20.04.1
5.15.0-1109.115~20.04.1
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.15<5.15.0-1106.110~20.04.1
5.15.0-1106.110~20.04.1
ubuntu/linux-riscv-5.8*
ubuntu/linux-xilinx-zynqmp*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-186.196
5.15.0-186.196
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1112.119
5.15.0-1112.119
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-aws-6.8<6.8.0-1013.14~22.04.1
6.8.0-1013.14~22.04.1
ubuntu/linux-azure<5.15.0-1117.126
5.15.0-1117.126
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-6.8<6.8.0-1012.14~22.04.1
6.8.0-1012.14~22.04.1
ubuntu/linux-azure-fde<5.15.0-1117.126
5.15.0-1117.126
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1112.122
5.15.0-1112.122
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gcp-6.8<6.8.0-1012.13~22.04.1
6.8.0-1012.13~22.04.1
ubuntu/linux-gke<5.15.0-1108.114
5.15.0-1108.114
ubuntu/linux-gkeop<5.15.0-1095.103
5.15.0-1095.103
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-hwe-6.8<6.8.0-40.40~22.04.3
6.8.0-40.40~22.04.3
ubuntu/linux-ibm<5.15.0-1106.110
5.15.0-1106.110
ubuntu/linux-ibm-6.8<6.8.0-1010.10~22.04.1
6.8.0-1010.10~22.04.1
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1107.113
5.15.0-1107.113
ubuntu/linux-kvm<5.15.0-1104.109
5.15.0-1104.109
ubuntu/linux-lowlatency<5.15.0-184.194
5.15.0-184.194
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-lowlatency-hwe-6.8<6.8.0-40.40.1~22.04.1
6.8.0-40.40.1~22.04.1
ubuntu/linux-nvidia<5.15.0-1107.108
5.15.0-1107.108
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-nvidia-6.8<6.8.0-1011.11~22.04.1
6.8.0-1011.11~22.04.1
ubuntu/linux-nvidia-tegra<5.15.0-1064.66
5.15.0-1064.66
ubuntu/linux-nvidia-tegra-igx<5.15.0-1053.53
5.15.0-1053.53
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1109.115
5.15.0-1109.115
ubuntu/linux-oracle-6.5*
ubuntu/linux-oracle-6.8<6.8.0-1010.10~22.04.1
6.8.0-1010.10~22.04.1
ubuntu/linux-raspi<5.15.0-1106.109
5.15.0-1106.109
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-riscv-6.8<6.8.0-40.40.1~22.04.1
6.8.0-40.40.1~22.04.1
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-xilinx-zynqmp<5.15.0-1075.79
5.15.0-1075.79
ubuntu/linux-bluefield<5.15.0-1096.98
5.15.0-1096.98
ubuntu/linux-intel-iot-realtime<5.15.0-1104.106
5.15.0-1104.106
ubuntu/linux-realtime<5.15.0-1111.120
5.15.0-1111.120
ubuntu/linux-realtime-6.8<6.8.1-1006.6~22.04.1
6.8.1-1006.6~22.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1112.119+fips1
5.15.0-1112.119+fips1
ubuntu/linux-azure-fips<5.15.0-1117.126+fips1
5.15.0-1117.126+fips1
ubuntu/linux-fips<5.15.0-186.196+fips1
5.15.0-186.196+fips1
ubuntu/linux-gcp-fips<5.15.0-1112.122+fips1
5.15.0-1112.122+fips1
ubuntu/linux<6.8.0-40.40
6.8.0-40.40
ubuntu/linux-aws<6.8.0-1013.14
6.8.0-1013.14
ubuntu/linux-azure<6.8.0-1012.14
6.8.0-1012.14
ubuntu/linux-gcp<6.8.0-1012.13
6.8.0-1012.13
ubuntu/linux-gke<6.8.0-1008.11
6.8.0-1008.11
ubuntu/linux-ibm<6.8.0-1010.10
6.8.0-1010.10
ubuntu/linux-lowlatency<6.8.0-40.40.1
6.8.0-40.40.1
ubuntu/linux-nvidia<6.8.0-1011.11
6.8.0-1011.11
ubuntu/linux-nvidia-lowlatency<6.8.0-1011.11.1
6.8.0-1011.11.1
ubuntu/linux-oem-6.8<6.8.0-1010.10
6.8.0-1010.10
ubuntu/linux-oracle<6.8.0-1010.10
6.8.0-1010.10
ubuntu/linux-raspi<6.8.0-1009.10
6.8.0-1009.10
ubuntu/linux-riscv<6.8.0-40.40.1
6.8.0-40.40.1
ubuntu/linux-raspi-realtime<6.8.0-2008.8
6.8.0-2008.8
ubuntu/linux-realtime<6.8.1-1006.6
6.8.1-1006.6
ubuntu/linux-fips<6.8.0-78.78+fips1
6.8.0-78.78+fips1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 6.6.31
  2. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 6.8.10
  3. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 6.9
  4. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1
  5. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.8.11-1
  6. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.115-2Fixed in 7.2.12-1Fixed in 7.2.15-1
  7. Upgrade

    Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1112.119~20.04.1
  8. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1117.126~20.04.1
  9. Upgrade

    Upgrade ubuntu/linux-azure-fde-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1117.126~20.04.2
  10. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1112.122~20.04.1
  11. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-186.196~20.04.1
  12. Upgrade

    Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.110~20.04.1
  13. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1107.113~20.04.1
  14. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-184.194~20.04.1
  15. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1064.66~20.04.1
  16. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1109.115~20.04.1
  17. Upgrade

    Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.110~20.04.1
  18. Upgrade

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

    Fixed in 5.15.0-186.196
  19. Upgrade

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

    Fixed in 5.15.0-1112.119
  20. Upgrade

    Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1013.14~22.04.1
  21. Upgrade

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

    Fixed in 5.15.0-1117.126
  22. Upgrade

    Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1012.14~22.04.1
  23. Upgrade

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

    Fixed in 5.15.0-1117.126
  24. Upgrade

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

    Fixed in 5.15.0-1112.122
  25. Upgrade

    Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1012.13~22.04.1
  26. Upgrade

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

    Fixed in 5.15.0-1108.114
  27. Upgrade

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

    Fixed in 5.15.0-1095.103
  28. Upgrade

    Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-40.40~22.04.3
  29. Upgrade

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

    Fixed in 5.15.0-1106.110
  30. Upgrade

    Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1010.10~22.04.1
  31. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1107.113
  32. Upgrade

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

    Fixed in 5.15.0-1104.109
  33. Upgrade

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

    Fixed in 5.15.0-184.194
  34. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-40.40.1~22.04.1
  35. Upgrade

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

    Fixed in 5.15.0-1107.108
  36. Upgrade

    Upgrade ubuntu/linux-nvidia-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1011.11~22.04.1
  37. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 5.15.0-1064.66
  38. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.

    Fixed in 5.15.0-1053.53
  39. Upgrade

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

    Fixed in 5.15.0-1109.115
  40. Upgrade

    Upgrade ubuntu/linux-oracle-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1010.10~22.04.1
  41. Upgrade

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

    Fixed in 5.15.0-1106.109
  42. Upgrade

    Upgrade ubuntu/linux-riscv-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-40.40.1~22.04.1
  43. Upgrade

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

    Fixed in 5.15.0-1075.79
  44. Upgrade

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

    Fixed in 5.15.0-1096.98
  45. Upgrade

    Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1104.106
  46. Upgrade

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

    Fixed in 5.15.0-1111.120
  47. Upgrade

    Upgrade ubuntu/linux-realtime-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.1-1006.6~22.04.1
  48. Upgrade

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

    Fixed in 5.15.0-1112.119+fips1
  49. Upgrade

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

    Fixed in 5.15.0-1117.126+fips1
  50. Upgrade

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

    Fixed in 5.15.0-186.196+fips1
  51. Upgrade

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

    Fixed in 5.15.0-1112.122+fips1
  52. Upgrade

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

    Fixed in 6.8.0-40.40
  53. Upgrade

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

    Fixed in 6.8.0-1013.14
  54. Upgrade

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

    Fixed in 6.8.0-1012.14
  55. Upgrade

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

    Fixed in 6.8.0-1012.13
  56. Upgrade

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

    Fixed in 6.8.0-1008.11
  57. Upgrade

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

    Fixed in 6.8.0-1010.10
  58. Upgrade

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

    Fixed in 6.8.0-40.40.1
  59. Upgrade

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

    Fixed in 6.8.0-1011.11
  60. Upgrade

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

    Fixed in 6.8.0-1011.11.1
  61. Upgrade

    Upgrade ubuntu/linux-oem-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1010.10
  62. Upgrade

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

    Fixed in 6.8.0-1010.10
  63. Upgrade

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

    Fixed in 6.8.0-1009.10
  64. Upgrade

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

    Fixed in 6.8.0-40.40.1
  65. Upgrade

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

    Fixed in 6.8.0-2008.8
  66. Upgrade

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

    Fixed in 6.8.1-1006.6
  67. Upgrade

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

    Fixed in 6.8.0-78.78+fips1

Event History

May 30, 2024
CVE Published
via MITRE·03:29 PM
Data Sourced
via MITRE·03:29 PM
DescriptionSeverity
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via OSV·04:15 PM
DescriptionSeverityAffected Software
Jun 3, 2024
Data Sourced
via Red Hat·12:32 PM
DescriptionSeverityAffected Software
Oct 3, 2025
Data Sourced
via Microsoft·01:01 AM
DescriptionSeverityWeaknessAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2024-36922?

CVE-2024-36922 has been classified with a moderate severity due to potential denial of service risk.

2

How do I fix CVE-2024-36922?

To mitigate CVE-2024-36922, update your Linux kernel to the latest advised versions such as 6.6.31 or 6.12.10-1.

3

What versions of the Linux kernel are affected by CVE-2024-36922?

CVE-2024-36922 affects certain versions including those before 6.6.31, 6.8.10, 6.9, and several versions prior to 6.12.10-1.

4

Is my system vulnerable to CVE-2024-36922?

If you are running an affected version of the Linux kernel below the patches provided, your system is vulnerable to CVE-2024-36922.

5

Where can I find more information about CVE-2024-36922?

Details about CVE-2024-36922 can be found in official Linux kernel repositories and security patches.

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