Linux Kernel up to 5.18.9 release_mem_region memory leak

CVSS Meta Temp Score
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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 5.18.9 and classified as critical. This issue affects the function release_mem_region. Such manipulation leads to memory leak. This vulnerability is traded as CVE-2022-49665. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.9. It has been rated as critical. Affected by this issue is the function release_mem_region. 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: platform/x86: thinkpad_acpi: Fix a memory leak of EFCH MMIO resource Unlike release_mem_region(), a call to release_resource() does not free the resource, so it has to be freed explicitly to avoid a memory leak.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-49665 since 02/26/2025. There are known technical details, but no exploit is available.

Upgrading to version 5.18.10 eliminates this vulnerability. Applying the patch 3884bf75fa044c73e843d95dd71a424e80ebb095/d2f33f0c3ad7b0d5262d9b986f1353265fad7a08 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.

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Productinfo

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Version

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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

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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.18.10
Patch: 3884bf75fa044c73e843d95dd71a424e80ebb095/d2f33f0c3ad7b0d5262d9b986f1353265fad7a08

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
10/23/2025 +239 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49665 (🔍)
GCVE (CVE): GCVE-0-2022-49665
GCVE (VulDB): GCVE-100-297224

Entryinfo

Created: 02/26/2025 10:51
Updated: 10/23/2025 18:52
Changes: 02/26/2025 10:51 (58), 10/23/2025 18:52 (11)
Complete: 🔍
Cache ID: 216::103

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