Linux Kernel up to 5.18.10 usbnet_write_cmd_async uninitialized pointer

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 5.18.10. Impacted is the function usbnet_write_cmd_async. The manipulation results in uninitialized pointer. This vulnerability was named CVE-2022-49657. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.10. It has been classified as problematic. Affected is the function usbnet_write_cmd_async. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. CWE is classifying the issue as CWE-824. The product accesses or uses a pointer that has not been initialized. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: usbnet: fix memory leak in error case usbnet_write_cmd_async() mixed up which buffers need to be freed in which error case. v2: add Fixes tag v3: fix uninitialized buf pointer

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2022-49657 since 02/26/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 233382 (Amazon Linux 2 : kernel (ALAS-2025-2790)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.323, 4.14.288, 4.19.252, 5.4.205, 5.10.130, 5.15.54 or 5.18.11 eliminates this vulnerability. Applying the patch 3eed421ca5c809da93456f69203d164d5220be3d/5269209f54dd8dfd15f9383f3a3a1fe8370764f8/d5165e657987ff4ba0ace896d4376a3718a9fbc3/04894ab34faf40ab72a8a5ab5b404bb0606bbbff/0085da9df3dced730027923a6b48f58e9016af91/db89582ff330556188da856e01382ccbf3a5e706/e7b4f69946a38209b4a4f660bf0e4cbed94f9b4b/b55a21b764c1e182014630fa5486d717484ac58f 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.

The vulnerability is also documented in the vulnerability database at Tenable (233382). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.9.322
• 4.14.287
• 4.19.251
• 5.4.204
• 5.10.129
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.15.34
• 5.15.35
• 5.15.36
• 5.15.37
• 5.15.38
• 5.15.39
• 5.15.40
• 5.15.41
• 5.15.42
• 5.15.43
• 5.15.44
• 5.15.45
• 5.15.46
• 5.15.47
• 5.15.48
• 5.15.49
• 5.15.50
• 5.15.51
• 5.15.52
• 5.15.53
• 5.18.0
• 5.18.1
• 5.18.2
• 5.18.3
• 5.18.4
• 5.18.5
• 5.18.6
• 5.18.7
• 5.18.8
• 5.18.9
• 5.18.10

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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