Linux Kernel up to 5.17.1 of_node_put reference count

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 5.17.1. This affects the function of_node_put. Performing a manipulation results in reference count. This vulnerability is known as CVE-2022-49237. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.17.1. This affects the function of_node_put. The manipulation with an unknown input leads to a reference count vulnerability. CWE is classifying the issue as CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ath11k: add missing of_node_put() to avoid leak The node pointer is returned by of_find_node_by_type() or of_parse_phandle() with refcount incremented. Calling of_node_put() to aovid the refcount leak.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-49237 since 02/26/2025. Technical details are known, but no exploit is available.

Upgrading to version 5.17.2 eliminates this vulnerability. Applying the patch 7d51cb010b20d70b16dc6e4341bf29d6c5b32564/3d38faef0de1756994b3d95e47b2302842f729e2 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: Reference count
CWE: CWE-911 / CWE-664
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 5.17.2
Patch: 7d51cb010b20d70b16dc6e4341bf29d6c5b32564/3d38faef0de1756994b3d95e47b2302842f729e2

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
03/19/2025 +21 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49237 (🔍)
GCVE (CVE): GCVE-0-2022-49237
GCVE (VulDB): GCVE-100-297525

Entryinfo

Created: 02/26/2025 12:05
Updated: 03/19/2025 06:03
Changes: 02/26/2025 12:05 (58), 03/19/2025 06:03 (11)
Complete: 🔍
Cache ID: 216::103

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