Linux Kernel up to 5.18.2 drivers/regulator/core.c privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.2 and classified as problematic. This affects an unknown function of the file drivers/regulator/core.c. Such manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2022-49528. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.2 and classified as problematic. Affected by this issue is an unknown code of the file drivers/regulator/core.c. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: media: i2c: dw9714: Disable the regulator when the driver fails to probe When the driver fails to probe, we will get the following splat: [ 59.305988] ------------[ cut here ]------------ [ 59.306417] WARNING: CPU: 2 PID: 395 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0 [ 59.310345] RIP: 0010:_regulator_put+0x3ec/0x4e0 [ 59.318362] Call Trace: [ 59.318582] [ 59.318765] regulator_put+0x1f/0x30 [ 59.319058] devres_release_group+0x319/0x3d0 [ 59.319420] i2c_device_probe+0x766/0x940 Fix this by disabling the regulator in error handling.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-49528 since 02/26/2025. The exploitation is known to be difficult. There are known technical details, but no exploit is available.

Upgrading to version 5.18.3 eliminates this vulnerability. Applying the patch fa83ea1de5b3efd87fe01408d5db1fd2ff4767fa 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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 5.18.3
Patch: fa83ea1de5b3efd87fe01408d5db1fd2ff4767fa

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
10/21/2025 +237 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49528 (🔍)
GCVE (CVE): GCVE-0-2022-49528
GCVE (VulDB): GCVE-100-297140

Entryinfo

Created: 02/26/2025 10:31
Updated: 10/21/2025 20:48
Changes: 02/26/2025 10:31 (56), 10/21/2025 20:48 (12)
Complete: 🔍
Cache ID: 216::103

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