Linux Kernel Pipe Buffer pipe_resize_ring locking

Summaryinfo

A vulnerability was found in Linux Kernel and classified as very critical. This issue affects the function pipe_resize_ring of the component Pipe Buffer Handler. The manipulation results in locking. This vulnerability was named CVE-2022-2959. The attack may be performed from remote. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as very critical has been found in Linux Kernel (Operating System) (the affected version is unknown). Affected is the function pipe_resize_ring of the component Pipe Buffer Handler. The manipulation with an unknown input leads to a locking vulnerability. CWE is classifying the issue as CWE-667. The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring(). The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper locking when performing operations on an object. This flaw allows a local user to crash the system or escalate their privileges on the system.

The weakness was presented 08/25/2022 as ZDI-22-1165. The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2022-2959 since 08/23/2022. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/28/2026).

The vulnerability scanner Nessus provides a plugin with the ID 239841 (TencentOS Server 4: kernel (TSSA-2024:0960)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 189b0ddc245139af81198d1a3637cac74f96e13a is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (239841) and EUVD (EUVD-2022-35180). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

License

• open-source

Website

• Vendor: https://www.kernel.org/

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

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