Linux Kernel up to 5.17.2 kzalloc null pointer dereference

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 5.17.2. It has been declared as critical. This affects the function kzalloc. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2022-49141. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.17.2 and classified as critical. Affected by this issue is the function kzalloc. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: net: dsa: felix: fix possible NULL pointer dereference As the possible failure of the allocation, kzalloc() may return NULL pointer. Therefore, it should be better to check the 'sgi' in order to prevent the dereference of NULL pointer.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-49141 since 02/26/2025. There are known technical details, but no exploit is available.

Upgrading to version 5.17.3 eliminates this vulnerability. Applying the patch b7ff8b5e75d4e91ec8c62d621aac8dfb84c57aa9/866b7a278cdb51eb158cd8513bc7438fc857804a 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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

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

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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 5.17.3
Patch: b7ff8b5e75d4e91ec8c62d621aac8dfb84c57aa9/866b7a278cdb51eb158cd8513bc7438fc857804a

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49141 (🔍)
GCVE (CVE): GCVE-0-2022-49141
GCVE (VulDB): GCVE-100-297464

Entryinfo

Created: 02/26/2025 11:43
Changes: 02/26/2025 11:43 (58)
Complete: 🔍
Cache ID: 216::103

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