CVE-2022-50427: ALSA: ac97: fix possible memory leak in snd_ac97_dev_register()

Published Oct 1, 2025
·
Updated

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

ALSA: ac97: fix possible memory leak in sndac97devregister()

If deviceregister() fails in sndac97devregister(), it should call putdevice() to give up reference, or the name allocated in devsetname() is leaked.

Affected Software

179 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel>=2.6.14<4.9.332
Linux Linux kernel>=4.10<4.14.298
Linux Linux kernel>=4.15<4.19.264
Linux Linux kernel>=4.20<5.4.223
Linux Linux kernel>=5.5<5.10.153
Linux Linux kernel>=5.11<5.15.77
Linux Linux kernel>=5.16<6.0.7
Linux Linux kernel=6.1-rc1
Linux Linux kernel=6.1-rc2
debian/linux<6.0.7-1
6.0.7-1
debian/linux<6.0.7-1
6.0.7-1
debian/linux<6.0.7-1
6.0.7-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1
ubuntu/linux-azure<4.15.0-1162.177~14.04.1
4.15.0-1162.177~14.04.1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-lts-xenial*
ubuntu/linux-aws-hwe<4.15.0-1151.164~16.04.1
4.15.0-1151.164~16.04.1
ubuntu/linux-azure<4.15.0-1162.177~16.04.1
4.15.0-1162.177~16.04.1
ubuntu/linux-gcp<4.15.0-1146.162~16.04.1
4.15.0-1146.162~16.04.1
ubuntu/linux-hwe<4.15.0-206.217~16.04.1
4.15.0-206.217~16.04.1
ubuntu/linux-oracle<4.15.0-1115.126~16.04.1
4.15.0-1115.126~16.04.1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-hwe-edge*
ubuntu/linux-kvm*
ubuntu/linux-fips*
ubuntu/linux-fips*
ubuntu/linux<4.15.0-204.215
4.15.0-204.215
ubuntu/linux-aws<4.15.0-1150.163
4.15.0-1150.163
ubuntu/linux-aws-5.4<5.4.0-1096.104~18.04.1
5.4.0-1096.104~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1161.176
4.15.0-1161.176
ubuntu/linux-azure-5.4<5.4.0-1103.109~18.04.1
5.4.0-1103.109~18.04.1
ubuntu/linux-gcp-4.15<4.15.0-1145.161
4.15.0-1145.161
ubuntu/linux-gcp-5.4<5.4.0-1100.109~18.04.1
5.4.0-1100.109~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-139.156~18.04.1
5.4.0-139.156~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1044.49~18.04.1
5.4.0-1044.49~18.04.1
ubuntu/linux-kvm<4.15.0-1135.140
4.15.0-1135.140
ubuntu/linux-oracle<4.15.0-1114.125
4.15.0-1114.125
ubuntu/linux-oracle-5.4<5.4.0-1093.102~18.04.1
5.4.0-1093.102~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1080.91~18.04.1
5.4.0-1080.91~18.04.1
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<4.15.0-2089.95
4.15.0-2089.95
ubuntu/linux-azure-fips<4.15.0-2070.76
4.15.0-2070.76
ubuntu/linux-fips<4.15.0-1107.118
4.15.0-1107.118
ubuntu/linux-gcp-fips<4.15.0-2054.59
4.15.0-2054.59
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-139.156
5.4.0-139.156
ubuntu/linux-aws<5.4.0-1096.104
5.4.0-1096.104
ubuntu/linux-aws-5.15<5.15.0-1030.34~20.04.1
5.15.0-1030.34~20.04.1
ubuntu/linux-azure<5.4.0-1103.109
5.4.0-1103.109
ubuntu/linux-azure-5.15<5.15.0-1033.40~20.04.1
5.15.0-1033.40~20.04.1
ubuntu/linux-bluefield<5.4.0-1058.64
5.4.0-1058.64
ubuntu/linux-gcp<5.4.0-1100.109
5.4.0-1100.109
ubuntu/linux-gcp-5.15<5.15.0-1029.36~20.04.1
5.15.0-1029.36~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-60.66~20.04.1
5.15.0-60.66~20.04.1
ubuntu/linux-ibm<5.4.0-1044.49
5.4.0-1044.49
ubuntu/linux-intel-iotg-5.15<5.15.0-1025.30~20.04.1
5.15.0-1025.30~20.04.1
ubuntu/linux-iot<5.4.0-1012.14
5.4.0-1012.14
ubuntu/linux-kvm<5.4.0-1086.92
5.4.0-1086.92
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-60.66~20.04.1
5.15.0-60.66~20.04.1
ubuntu/linux-oracle<5.4.0-1093.102
5.4.0-1093.102
ubuntu/linux-oracle-5.15<5.15.0-1029.35~20.04.1
5.15.0-1029.35~20.04.1
ubuntu/linux-raspi<5.4.0-1080.91
5.4.0-1080.91
ubuntu/linux-riscv-5.15<5.15.0-1029.33~20.04.1
5.15.0-1029.33~20.04.1
ubuntu/linux-xilinx-zynqmp<5.4.0-1021.25
5.4.0-1021.25
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<5.4.0-1096.104+fips1
5.4.0-1096.104+fips1
ubuntu/linux-azure-fips<5.4.0-1103.109+fips1
5.4.0-1103.109+fips1
ubuntu/linux-fips<5.4.0-1072.81
5.4.0-1072.81
ubuntu/linux-gcp-fips<5.4.0-1100.109+fips1
5.4.0-1100.109+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-60.66
5.15.0-60.66
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1030.34
5.15.0-1030.34
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-azure<5.15.0-1033.40
5.15.0-1033.40
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-fde<5.15.0-1033.40.1
5.15.0-1033.40.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1029.36
5.15.0-1029.36
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gke<5.15.0-1027.32
5.15.0-1027.32
ubuntu/linux-gkeop<5.15.0-1015.19
5.15.0-1015.19
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-ibm<5.15.0-1025.28
5.15.0-1025.28
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1025.30
5.15.0-1025.30
ubuntu/linux-kvm<5.15.0-1028.33
5.15.0-1028.33
ubuntu/linux-lowlatency<5.15.0-60.66
5.15.0-60.66
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-nvidia<5.15.0-1017.17
5.15.0-1017.17
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<5.15.0-1029.35
5.15.0-1029.35
ubuntu/linux-oracle-6.5*
ubuntu/linux-raspi<5.15.0-1024.26
5.15.0-1024.26
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-bluefield<5.15.0-1014.16
5.15.0-1014.16
ubuntu/linux-azure-6.11*
ubuntu/linux-gcp-6.11*
ubuntu/linux-hwe-6.11*
ubuntu/linux-intel*
ubuntu/linux-lowlatency-hwe-6.11*
ubuntu/linux-oem-6.11*
ubuntu/linux-oem-6.8*
ubuntu/linux-raspi-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 6.0.7-1
  2. 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
  3. Upgrade

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

    Fixed in 4.15.0-1162.177~14.04.1
  4. Upgrade

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

    Fixed in 4.15.0-1151.164~16.04.1
  5. Upgrade

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

    Fixed in 4.15.0-1162.177~16.04.1
  6. Upgrade

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

    Fixed in 4.15.0-1146.162~16.04.1
  7. Upgrade

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

    Fixed in 4.15.0-206.217~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1115.126~16.04.1
  9. Upgrade

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

    Fixed in 4.15.0-204.215
  10. Upgrade

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

    Fixed in 4.15.0-1150.163
  11. Upgrade

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

    Fixed in 5.4.0-1096.104~18.04.1
  12. Upgrade

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

    Fixed in 4.15.0-1161.176
  13. Upgrade

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

    Fixed in 5.4.0-1103.109~18.04.1
  14. Upgrade

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

    Fixed in 4.15.0-1145.161
  15. Upgrade

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

    Fixed in 5.4.0-1100.109~18.04.1
  16. Upgrade

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

    Fixed in 5.4.0-139.156~18.04.1
  17. Upgrade

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

    Fixed in 5.4.0-1044.49~18.04.1
  18. Upgrade

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

    Fixed in 4.15.0-1135.140
  19. Upgrade

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

    Fixed in 4.15.0-1114.125
  20. Upgrade

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

    Fixed in 5.4.0-1093.102~18.04.1
  21. Upgrade

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

    Fixed in 5.4.0-1080.91~18.04.1
  22. Upgrade

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

    Fixed in 4.15.0-2089.95
  23. Upgrade

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

    Fixed in 4.15.0-2070.76
  24. Upgrade

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

    Fixed in 4.15.0-1107.118
  25. Upgrade

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

    Fixed in 4.15.0-2054.59
  26. Upgrade

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

    Fixed in 5.4.0-139.156
  27. Upgrade

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

    Fixed in 5.4.0-1096.104
  28. Upgrade

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

    Fixed in 5.15.0-1030.34~20.04.1
  29. Upgrade

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

    Fixed in 5.4.0-1103.109
  30. Upgrade

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

    Fixed in 5.15.0-1033.40~20.04.1
  31. Upgrade

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

    Fixed in 5.4.0-1058.64
  32. Upgrade

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

    Fixed in 5.4.0-1100.109
  33. Upgrade

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

    Fixed in 5.15.0-1029.36~20.04.1
  34. Upgrade

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

    Fixed in 5.15.0-60.66~20.04.1
  35. Upgrade

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

    Fixed in 5.4.0-1044.49
  36. Upgrade

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

    Fixed in 5.15.0-1025.30~20.04.1
  37. Upgrade

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

    Fixed in 5.4.0-1012.14
  38. Upgrade

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

    Fixed in 5.4.0-1086.92
  39. Upgrade

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

    Fixed in 5.15.0-60.66~20.04.1
  40. Upgrade

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

    Fixed in 5.4.0-1093.102
  41. Upgrade

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

    Fixed in 5.15.0-1029.35~20.04.1
  42. Upgrade

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

    Fixed in 5.4.0-1080.91
  43. Upgrade

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

    Fixed in 5.15.0-1029.33~20.04.1
  44. Upgrade

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

    Fixed in 5.4.0-1021.25
  45. Upgrade

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

    Fixed in 5.4.0-1096.104+fips1
  46. Upgrade

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

    Fixed in 5.4.0-1103.109+fips1
  47. Upgrade

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

    Fixed in 5.4.0-1072.81
  48. Upgrade

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

    Fixed in 5.4.0-1100.109+fips1
  49. Upgrade

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

    Fixed in 5.15.0-60.66
  50. Upgrade

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

    Fixed in 5.15.0-1030.34
  51. Upgrade

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

    Fixed in 5.15.0-1033.40
  52. Upgrade

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

    Fixed in 5.15.0-1033.40.1
  53. Upgrade

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

    Fixed in 5.15.0-1029.36
  54. Upgrade

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

    Fixed in 5.15.0-1027.32
  55. Upgrade

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

    Fixed in 5.15.0-1015.19
  56. Upgrade

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

    Fixed in 5.15.0-1025.28
  57. Upgrade

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

    Fixed in 5.15.0-1025.30
  58. Upgrade

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

    Fixed in 5.15.0-1028.33
  59. Upgrade

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

    Fixed in 5.15.0-60.66
  60. Upgrade

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

    Fixed in 5.15.0-1017.17
  61. Upgrade

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

    Fixed in 5.15.0-1029.35
  62. Upgrade

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

    Fixed in 5.15.0-1024.26
  63. Upgrade

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

    Fixed in 5.15.0-1014.16

Event History

Oct 1, 2025
CVE Published
via MITRE·11:42 AM
Data Sourced
via MITRE·11:42 AM
Description
Data Sourced
via OSV·12:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·12:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What level of access is required to exploit this issue?

The CVSS vector indicates local access and low privileges are required. No user interaction is required.

2

What is the expected security impact?

The reported impact is limited to availability, with high availability impact. No confidentiality or integrity impact is indicated.

3

When does the leak occur?

The leak can occur when device_register() fails during snd_ac97_dev_register(). In that failure path, the device reference is not released and the name allocated by dev_set_name() can remain leaked.

4

What remediation is available?

A patch is available. The supplied references identify stable-kernel commits containing the fix.

Company

Resources

Contact

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