CVE-2022-50662: RDMA/hns: fix memory leak in hns_roce_alloc_mr()

Q: What is the severity of CVE-2022-50662?

CVE-2022-50662 is categorized as a moderate severity vulnerability affecting the Linux kernel.

Q: How do I fix CVE-2022-50662?

To fix CVE-2022-50662, update your Linux kernel to the latest version where the vulnerability has been patched.

Q: Who is affected by CVE-2022-50662?

CVE-2022-50662 affects users running specific versions of the Linux kernel that implement RDMA/hns functionalities.

Q: What does CVE-2022-50662 involve?

CVE-2022-50662 involves a memory leak in the hns_roce_alloc_mr() function within the Linux kernel.

Q: Is CVE-2022-50662 being actively exploited?

As of now, there are no known active exploits for CVE-2022-50662.

Published Dec 9, 2025

Updated

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

RDMA/hns: fix memory leak in hnsroceallocmr()

When hnsrocemrenable() failed in hnsroceallocmr(), mrkey is not released. Compiled test only.

Affected Software

124 affected componentsFixes available

linux/kernel

debian/linux<6.1.4-1

6.1.4-1

debian/linux<6.1.4-1

6.1.4-1

debian/linux<6.1.4-1

6.1.4-1

ubuntu/linux-hwe-edge*

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-5.15<5.15.0-1033.37~20.04.1

5.15.0-1033.37~20.04.1

ubuntu/linux-azure-5.15<5.15.0-1035.42~20.04.1

5.15.0-1035.42~20.04.1

ubuntu/linux-gcp-5.15<5.15.0-1031.38~20.04.1

5.15.0-1031.38~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-69.76~20.04.1

5.15.0-69.76~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1027.32~20.04.1

5.15.0-1027.32~20.04.1

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-69.76~20.04.1

5.15.0-69.76~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1014.14~20.04.1

5.15.0-1014.14~20.04.1

ubuntu/linux-oracle-5.15<5.15.0-1032.38~20.04.1

5.15.0-1032.38~20.04.1

ubuntu/linux-riscv-5.15<5.15.0-1030.34~20.04.1

5.15.0-1030.34~20.04.1

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<5.15.0-69.76

5.15.0-69.76

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1033.37

5.15.0-1033.37

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-azure<5.15.0-1035.42

5.15.0-1035.42

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-fde<5.15.0-1035.42.1

5.15.0-1035.42.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1031.38

5.15.0-1031.38

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gke<5.15.0-1030.35

5.15.0-1030.35

ubuntu/linux-gkeop<5.15.0-1017.22

5.15.0-1017.22

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-ibm<5.15.0-1027.30

5.15.0-1027.30

ubuntu/linux-intel-iot-realtime*

ubuntu/linux-intel-iotg<5.15.0-1027.32

5.15.0-1027.32

ubuntu/linux-kvm<5.15.0-1030.35

5.15.0-1030.35

ubuntu/linux-lowlatency<5.15.0-69.76

5.15.0-69.76

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-nvidia<5.15.0-1023.23

5.15.0-1023.23

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<5.15.0-1032.38

5.15.0-1032.38

ubuntu/linux-oracle-6.5*

ubuntu/linux-raspi<5.15.0-1026.28

5.15.0-1026.28

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<5.15.0-1015.17

5.15.0-1015.17

ubuntu/linux-intel-iot-realtime<5.15.0-1023.28

5.15.0-1023.28

ubuntu/linux-realtime<5.15.0-1034.37

5.15.0-1034.37

ubuntu/linux-azure-6.11*

ubuntu/linux-gcp-6.11*

ubuntu/linux-hwe-6.11*

ubuntu/linux-lowlatency-hwe-6.11*

ubuntu/linux-nvidia-6.11*

ubuntu/linux-oem-6.11*

ubuntu/linux-oem-6.8*

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-6.14*

ubuntu/linux-vmware*

linux/kernel>=5.8.0<5.10.163

5.10.163

linux/kernel>=5.11.0<5.15.86

5.15.86

linux/kernel>=5.16.0<6.0.16

6.0.16

linux/kernel>=6.1.0<6.1.2

6.1.2

debian/linux

6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade debian/linux to a version that resolves this vulnerability.
Fixed in 6.1.4-1
Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1033.37~20.04.1
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1035.42~20.04.1
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1031.38~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-69.76~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1027.32~20.04.1
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-69.76~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1014.14~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.38~20.04.1
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.34~20.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-69.76
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1033.37
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1035.42
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1035.42.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1031.38
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.35
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1017.22
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1027.30
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1027.32
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.35
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-69.76
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1023.23
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.38
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1026.28
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.15.0-1015.17
Upgrade
Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1023.28
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1034.37
Upgrade
Upgrade linux/Kernel to a version that resolves this vulnerability.
Fixed in 5.10.163
Upgrade
Upgrade linux/Kernel to a version that resolves this vulnerability.
Fixed in 5.15.86
Upgrade
Upgrade linux/Kernel to a version that resolves this vulnerability.
Fixed in 6.0.16
Upgrade
Upgrade linux/Kernel to a version that resolves this vulnerability.
Fixed in 6.1.2
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 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.4-1

Event History

Dec 9, 2025

CVE Published

via MITRE·01:29 AM

Data Sourced

via MITRE·01:29 AM

Description

Data Sourced

via OSV·01:29 AM

DescriptionAffected Software

Data Sourced

via NVD·04:17 PM

Description

Nov 11, 2026

Data Sourced

via OSV·09:37 AM

Severity

Frequently Asked Questions

What is the severity of CVE-2022-50662?

CVE-2022-50662 is categorized as a moderate severity vulnerability affecting the Linux kernel.

How do I fix CVE-2022-50662?

To fix CVE-2022-50662, update your Linux kernel to the latest version where the vulnerability has been patched.

Who is affected by CVE-2022-50662?

CVE-2022-50662 affects users running specific versions of the Linux kernel that implement RDMA/hns functionalities.

What does CVE-2022-50662 involve?

CVE-2022-50662 involves a memory leak in the hns_roce_alloc_mr() function within the Linux kernel.

Is CVE-2022-50662 being actively exploited?

As of now, there are no known active exploits for CVE-2022-50662.

CVE-2022-50662: RDMA/hns: fix memory leak in hns_roce_alloc_mr()

Affected Software

Remediation

Event History

Frequently Asked Questions

What is the severity of CVE-2022-50662?

How do I fix CVE-2022-50662?

Who is affected by CVE-2022-50662?

What does CVE-2022-50662 involve?

Is CVE-2022-50662 being actively exploited?

Company

Resources

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