PT-2025-26064 · Linux+4 · Linux Kernel+4

Published 2022-07-18 · Updated 2025-11-18 · CVE-2022-50138

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A potential memory leak has been identified in the Linux kernel, specifically in the RDMA/qedr component. The issue arises when qedr alloc mr() allocates memory for mr->info.pbl table using init mr info(), and errors occur during rdma alloc tid() and rdma register tid(). As a result, mr is released, but mr->info.pbl table is not, leading to a memory leak. To fix this issue, mr->info.pbl table should be released using qedr free pbl() when an error occurs.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2026-04569

CESA-2023_2951

CVE-2022-50138

RHSA-2023:2458

RHSA-2023:2951

RHSA-2023_2458

RHSA-2023_2951

SUSE-SU-2025:02264-1

SUSE-SU-2025:02308-1

SUSE-SU-2025:02320-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:02322-1

SUSE-SU-2025:02537-1

SUSE-SU-2025:03204-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02308-1

SUSE-SU-2025_02537-1

SUSE-SU-2025_03204-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 706

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50138.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50138 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03204-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7e647a8d5fc0a2c8e0f36f585a6388286a25bb15 · Patch
• https://git.kernel.org/stable/c/79ce50dddaf28b5c57911ecc80a2be17a0b17f83 · Patch
• https://git.kernel.org/stable/c/b3236a64ddd125a455ef5b5316c1b9051b732974 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02308-1 · Vendor Advisory
• https://git.kernel.org/stable/c/07ba048df306dc93fc4d2ef670b9e24644a2069f · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02320-1 · Vendor Advisory
• https://git.kernel.org/stable/c/b4c9f7db9f0148423557539af0fdf513338efe08 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50138 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-04569 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50138 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory