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OpenAdvisories
Medium · 5.5 CVE-2022-50391 EUVD-2025-29966GHSA-m9c8-445c-mwfr

mm/mempolicy: fix memory leak in set_mempolicy_home_node system call

Published Sep 18, 2025 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.11 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-intel Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

mm/mempolicy: fix memory leak in set_mempolicy_home_node system call

When encountering any vma in the range with policy other than MPOL_BIND or
MPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on
the policy just allocated with mpol_dup().

This allows arbitrary users to leak kernel memory.

Affected products

VendorProductAffectedFixed
Linux Linux 5.17 6.0.17

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.1.4-1 —
Debian 13 linux 6.1.4-1 —
Debian 12 linux 6.1.4-1 —
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-intel +9 No fix yet —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 bpftool 7.2.0-362.8.1.el9_3 RHSA-2023:6583
RHEL 9 rv +64 5.14.0-362.8.1.el9_3 RHSA-2023:6583
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
Show 11 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.109.1 SUSE-SU-2025:3761-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.133.1 SUSE-SU-2025:3716-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.133.1 SUSE-SU-2025:3716-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_31 1-150500.11.3.1 SUSE-SU-2025:03615-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_45 1-150400.9.3.1 SUSE-SU-2025:03628-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Server LTS 4.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Server LTS 4.3 kernel-syms +3 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SUSE Manager Proxy LTS 4.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Proxy LTS 4.3 kernel-syms +2 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1

Advisories 6

References