Linux Kernel up to 5.18.2 wl1251_read32 denial of service

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

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.18.2 and classified as critical. The affected element is the function wl1251_read32. The manipulation leads to denial of service. This vulnerability is listed as CVE-2022-49500. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.18.2. This issue affects the function wl1251_read32. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wl1251: dynamically allocate memory used for DMA With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic. It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora. We solve this by allocating temporary buffers or use wl1251_read32(). Tested on v5.18-rc5 with OpenPandora.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2022-49500 since 02/26/2025. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.18.3 eliminates this vulnerability. Applying the patch da03bbfbf5acd1ab0b074617e865ad1e8a5779ef/454744754cbf2c21b3fc7344e46e10bee2768094 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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 5.18.3
Patch: da03bbfbf5acd1ab0b074617e865ad1e8a5779ef/454744754cbf2c21b3fc7344e46e10bee2768094

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
10/23/2025 +238 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49500 (🔍)
GCVE (CVE): GCVE-0-2022-49500
GCVE (VulDB): GCVE-100-297083

Entryinfo

Created: 02/26/2025 10:11
Updated: 10/23/2025 01:02
Changes: 02/26/2025 10:11 (58), 10/23/2025 01:02 (11)
Complete: 🔍
Cache ID: 216::103

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