Linux Kernel up to 5.10.136/5.15.60/5.18.17/5.19.1 RDMA __qedr_alloc_mr memory leak

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.10.136/5.15.60/5.18.17/5.19.1. It has been declared as critical. This issue affects the function __qedr_alloc_mr of the component RDMA. Such manipulation leads to memory leak. This vulnerability is referenced as CVE-2022-50138. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.10.136/5.15.60/5.18.17/5.19.1. Affected by this issue is the function __qedr_alloc_mr of the component RDMA. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr() __qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr" is released while "mr->info.pbl_table" is not released, which will lead to a memory leak. We should release the "mr->info.pbl_table" with qedr_free_pbl() when error occurs to fix the memory leak.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2022-50138 since 06/18/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 264665 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03204-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.137, 5.15.61, 5.18.18 or 5.19.2 eliminates this vulnerability. Applying the patch 79ce50dddaf28b5c57911ecc80a2be17a0b17f83/7e647a8d5fc0a2c8e0f36f585a6388286a25bb15/07ba048df306dc93fc4d2ef670b9e24644a2069f/b4c9f7db9f0148423557539af0fdf513338efe08/b3236a64ddd125a455ef5b5316c1b9051b732974 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (264665) and CERT Bund (WID-SEC-2025-1350). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Avamar
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 264665
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03204-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.137/5.15.61/5.18.18/5.19.2
Patch: 79ce50dddaf28b5c57911ecc80a2be17a0b17f83/7e647a8d5fc0a2c8e0f36f585a6388286a25bb15/07ba048df306dc93fc4d2ef670b9e24644a2069f/b4c9f7db9f0148423557539af0fdf513338efe08/b3236a64ddd125a455ef5b5316c1b9051b732974

Timelineinfo

06/18/2025 Advisory disclosed
06/18/2025 +0 days CVE reserved
06/18/2025 +0 days VulDB entry created
12/01/2025 +166 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50138 (🔒)
GCVE (CVE): GCVE-0-2022-50138
GCVE (VulDB): GCVE-100-313130
CERT Bund: WID-SEC-2025-1350 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 06/18/2025 15:24
Updated: 12/01/2025 04:56
Changes: 06/18/2025 15:24 (59), 09/13/2025 16:18 (2), 10/19/2025 17:45 (7), 11/18/2025 04:18 (11), 12/01/2025 04:56 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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