CVE-2022-49432: powerpc/xics: fix refcount leak in icp_opal_init()

Published Feb 26, 2025
·
Updated

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

powerpc/xics: fix refcount leak in icpopalinit()

The offindcompatiblenode() function returns a node pointer with refcount incremented, use ofnodeput() on it when done.

Affected Software

162 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel<4.9.318
Linux Linux kernel>=4.10<4.14.283
Linux Linux kernel>=4.15<4.19.247
Linux Linux kernel>=4.20<5.4.198
Linux Linux kernel>=5.5<5.10.121
Linux Linux kernel>=5.11<5.15.46
Linux Linux kernel>=5.16<5.17.14
Linux Linux kernel>=5.18<5.18.3
IBM Verify Identity Access<=11.0 - 11.0.2
IBM Security Verify Access<=10.0 - 10.0.9.1
IBM Verify Identity Access Container<=11.0 - 11.0.2
IBM Security Verify Access Container<=10.0 - 10.0.9.1
ubuntu/linux-azure<4.15.0-1150.165~14.04.1
4.15.0-1150.165~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1140.151~16.04.1
4.15.0-1140.151~16.04.1
ubuntu/linux-azure<4.15.0-1150.165~16.04.1
4.15.0-1150.165~16.04.1
ubuntu/linux-gcp<4.15.0-1135.151~16.04.2
4.15.0-1135.151~16.04.2
ubuntu/linux-hwe<4.15.0-192.203~16.04.1
4.15.0-192.203~16.04.1
ubuntu/linux-oracle<4.15.0-1105.116~16.04.1
4.15.0-1105.116~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux<4.15.0-192.203
4.15.0-192.203
ubuntu/linux-aws<4.15.0-1140.151
4.15.0-1140.151
ubuntu/linux-aws-5.4<5.4.0-1085.92~18.04.1
5.4.0-1085.92~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1150.165
4.15.0-1150.165
ubuntu/linux-azure-5.4<5.4.0-1091.96~18.04.1
5.4.0-1091.96~18.04.1
ubuntu/linux-gcp-4.15<4.15.0-1135.151
4.15.0-1135.151
ubuntu/linux-gcp-5.4<5.4.0-1089.97~18.04.1
5.4.0-1089.97~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-126.142~18.04.1
5.4.0-126.142~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1033.37~18.04.1
5.4.0-1033.37~18.04.1
ubuntu/linux-kvm<4.15.0-1126.131
4.15.0-1126.131
ubuntu/linux-oracle<4.15.0-1105.116
4.15.0-1105.116
ubuntu/linux-oracle-5.4<5.4.0-1083.91~18.04.1
5.4.0-1083.91~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1070.80~18.04.1
5.4.0-1070.80~18.04.1
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-aws-fips<4.15.0-2079.84
4.15.0-2079.84
ubuntu/linux-azure-fips<4.15.0-2060.66
4.15.0-2060.66
ubuntu/linux-fips<4.15.0-1097.108
4.15.0-1097.108
ubuntu/linux-gcp-fips<4.15.0-2044.49
4.15.0-2044.49
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-126.142
5.4.0-126.142
ubuntu/linux-aws<5.4.0-1085.92
5.4.0-1085.92
ubuntu/linux-aws-5.15<5.15.0-1019.23~20.04.1
5.15.0-1019.23~20.04.1
ubuntu/linux-azure<5.4.0-1091.96
5.4.0-1091.96
ubuntu/linux-azure-5.15<5.15.0-1019.24~20.04.1
5.15.0-1019.24~20.04.1
ubuntu/linux-bluefield<5.4.0-1046.51
5.4.0-1046.51
ubuntu/linux-gcp<5.4.0-1089.97
5.4.0-1089.97
ubuntu/linux-gcp-5.15<5.15.0-1017.23~20.04.2
5.15.0-1017.23~20.04.2
ubuntu/linux-hwe-5.15<5.15.0-48.54~20.04.1
5.15.0-48.54~20.04.1
ubuntu/linux-ibm<5.4.0-1033.37
5.4.0-1033.37
ubuntu/linux-intel-iotg-5.15<5.15.0-1015.20~20.04.2
5.15.0-1015.20~20.04.2
ubuntu/linux-iot<5.4.0-1004.6
5.4.0-1004.6
ubuntu/linux-kvm<5.4.0-1075.80
5.4.0-1075.80
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-48.54~20.04.1
5.15.0-48.54~20.04.1
ubuntu/linux-oracle<5.4.0-1083.91
5.4.0-1083.91
ubuntu/linux-oracle-5.15<5.15.0-1017.22~20.04.1
5.15.0-1017.22~20.04.1
ubuntu/linux-raspi<5.4.0-1070.80
5.4.0-1070.80
ubuntu/linux-riscv-5.15<5.15.0-1018.21~20.04.1
5.15.0-1018.21~20.04.1
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
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-5.8*
ubuntu/linux-intel-5.13*
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.8*
ubuntu/linux-aws-fips<5.4.0-1085.92+fips1
5.4.0-1085.92+fips1
ubuntu/linux-azure-fips<5.4.0-1091.96+fips1
5.4.0-1091.96+fips1
ubuntu/linux-fips<5.4.0-1061.69
5.4.0-1061.69
ubuntu/linux-gcp-fips<5.4.0-1089.97+fips1
5.4.0-1089.97+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-47.51
5.15.0-47.51
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1019.23
5.15.0-1019.23
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-azure<5.15.0-1019.24
5.15.0-1019.24
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1017.23
5.15.0-1017.23
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gke<5.15.0-1015.18
5.15.0-1015.18
ubuntu/linux-gkeop<5.15.0-1002.4
5.15.0-1002.4
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-ibm<5.15.0-1013.15
5.15.0-1013.15
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1015.20
5.15.0-1015.20
ubuntu/linux-kvm<5.15.0-1017.21
5.15.0-1017.21
ubuntu/linux-lowlatency<5.15.0-47.53
5.15.0-47.53
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-nvidia<5.15.0-1007.7
5.15.0-1007.7
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1017.22
5.15.0-1017.22
ubuntu/linux-oracle-6.5*
ubuntu/linux-raspi<5.15.0-1014.16
5.15.0-1014.16
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-realtime<5.15.0-1020.20
5.15.0-1020.20
ubuntu/linux-raspi-realtime*
debian/linux<5.18.5-1
5.18.5-1
debian/linux<5.18.5-1
5.18.5-1
debian/linux<5.18.5-1
5.18.5-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 4.15.0-1150.165~14.04.1
  2. Upgrade

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

    Fixed in 4.15.0-1140.151~16.04.1
  3. Upgrade

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

    Fixed in 4.15.0-1150.165~16.04.1
  4. Upgrade

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

    Fixed in 4.15.0-1135.151~16.04.2
  5. Upgrade

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

    Fixed in 4.15.0-192.203~16.04.1
  6. Upgrade

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

    Fixed in 4.15.0-1105.116~16.04.1
  7. Upgrade

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

    Fixed in 4.15.0-192.203
  8. Upgrade

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

    Fixed in 4.15.0-1140.151
  9. Upgrade

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

    Fixed in 5.4.0-1085.92~18.04.1
  10. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1150.165
  11. Upgrade

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

    Fixed in 5.4.0-1091.96~18.04.1
  12. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1135.151
  13. Upgrade

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

    Fixed in 5.4.0-1089.97~18.04.1
  14. Upgrade

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

    Fixed in 5.4.0-126.142~18.04.1
  15. Upgrade

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

    Fixed in 5.4.0-1033.37~18.04.1
  16. Upgrade

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

    Fixed in 4.15.0-1126.131
  17. Upgrade

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

    Fixed in 4.15.0-1105.116
  18. Upgrade

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

    Fixed in 5.4.0-1083.91~18.04.1
  19. Upgrade

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

    Fixed in 5.4.0-1070.80~18.04.1
  20. Upgrade

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

    Fixed in 4.15.0-2079.84
  21. Upgrade

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

    Fixed in 4.15.0-2060.66
  22. Upgrade

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

    Fixed in 4.15.0-1097.108
  23. Upgrade

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

    Fixed in 4.15.0-2044.49
  24. Upgrade

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

    Fixed in 5.4.0-126.142
  25. Upgrade

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

    Fixed in 5.4.0-1085.92
  26. Upgrade

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

    Fixed in 5.15.0-1019.23~20.04.1
  27. Upgrade

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

    Fixed in 5.4.0-1091.96
  28. Upgrade

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

    Fixed in 5.15.0-1019.24~20.04.1
  29. Upgrade

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

    Fixed in 5.4.0-1046.51
  30. Upgrade

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

    Fixed in 5.4.0-1089.97
  31. Upgrade

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

    Fixed in 5.15.0-1017.23~20.04.2
  32. Upgrade

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

    Fixed in 5.15.0-48.54~20.04.1
  33. Upgrade

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

    Fixed in 5.4.0-1033.37
  34. Upgrade

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

    Fixed in 5.15.0-1015.20~20.04.2
  35. Upgrade

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

    Fixed in 5.4.0-1004.6
  36. Upgrade

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

    Fixed in 5.4.0-1075.80
  37. Upgrade

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

    Fixed in 5.15.0-48.54~20.04.1
  38. Upgrade

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

    Fixed in 5.4.0-1083.91
  39. Upgrade

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

    Fixed in 5.15.0-1017.22~20.04.1
  40. Upgrade

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

    Fixed in 5.4.0-1070.80
  41. Upgrade

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

    Fixed in 5.15.0-1018.21~20.04.1
  42. Upgrade

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

    Fixed in 5.4.0-1085.92+fips1
  43. Upgrade

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

    Fixed in 5.4.0-1091.96+fips1
  44. Upgrade

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

    Fixed in 5.4.0-1061.69
  45. Upgrade

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

    Fixed in 5.4.0-1089.97+fips1
  46. Upgrade

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

    Fixed in 5.15.0-47.51
  47. Upgrade

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

    Fixed in 5.15.0-1019.23
  48. Upgrade

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

    Fixed in 5.15.0-1019.24
  49. Upgrade

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

    Fixed in 5.15.0-1017.23
  50. Upgrade

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

    Fixed in 5.15.0-1015.18
  51. Upgrade

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

    Fixed in 5.15.0-1002.4
  52. Upgrade

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

    Fixed in 5.15.0-1013.15
  53. Upgrade

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

    Fixed in 5.15.0-1015.20
  54. Upgrade

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

    Fixed in 5.15.0-1017.21
  55. Upgrade

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

    Fixed in 5.15.0-47.53
  56. Upgrade

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

    Fixed in 5.15.0-1007.7
  57. Upgrade

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

    Fixed in 5.15.0-1017.22
  58. Upgrade

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

    Fixed in 5.15.0-1014.16
  59. Upgrade

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

    Fixed in 5.15.0-1020.20
  60. Upgrade

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

    Fixed in 5.18.5-1
  61. 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
  62. Compensating control

    In powerpc/xics icp_opal_init(), call of_node_put() on the node returned by of_find_compatible_node() when it is no longer needed, releasing the incremented reference count.

Event History

Feb 26, 2025
CVE Published
via MITRE·02:12 AM
Data Sourced
via MITRE·02:12 AM
Description
Data Sourced
via Red Hat·03:05 AM
DescriptionSeverityAffected Software
Data Sourced
via OSV·07:01 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·07:01 AM
RemedyDescriptionSeverityAffected Software
Jul 8, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2022-49432?

CVE-2022-49432 is classified as a medium severity vulnerability due to its potential to cause a refcount leak.

2

How do I fix CVE-2022-49432?

To fix CVE-2022-49432, update your Linux kernel to a version beyond the affected ranges listed in the CVE.

3

Which versions of the Linux kernel are affected by CVE-2022-49432?

CVE-2022-49432 affects Linux kernel versions prior to 4.9.318 and those between 4.10 and 5.18.3.

4

What is the nature of the vulnerability in CVE-2022-49432?

CVE-2022-49432 involves a refcount leak in the icp_opal_init() function within the powerpc/xics subsystem.

5

Is CVE-2022-49432 exploitable by remote attackers?

CVE-2022-49432 does not appear to be directly exploitable by remote attackers, as it primarily concerns local privilege escalation.

Company

Resources

Contact

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