Linux Kernel up to 7.0.6/7.1-rc2 ivpu prime_handle_to_fd buffer overflow

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.0.6/7.1-rc2. It has been classified as critical. Affected by this vulnerability is the function prime_handle_to_fd of the component ivpu. Performing a manipulation results in buffer overflow. This vulnerability was named CVE-2026-43498. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 7.0.6/7.1-rc2. This affects the function prime_handle_to_fd of the component ivpu. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Disallow re-exporting imported GEM objects Prevent re-exporting of imported GEM buffers by adding a custom prime_handle_to_fd callback that checks if the object is imported and returns -EOPNOTSUPP if so. Re-exporting imported GEM buffers causes loss of buffer flags settings, leading to incorrect device access and data corruption.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-43498 since 05/01/2026. The exploitability is told to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/09/2026).

The vulnerability scanner Nessus provides a plugin with the ID 316597 (Linux Distros Unpatched Vulnerability : CVE-2026-43498), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.7 or 7.1-rc3 eliminates this vulnerability. Applying the patch 3756043dd695bba34cc728cdc5688dcb49ac8043/7dd57d7a6350770dfc283287125c409e995200e0 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 databases at Tenable (316597) and CERT Bund (WID-SEC-2026-1656). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Google Container-Optimized OS
• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• Open Source Linux Kernel

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.1-rc1
• 7.1-rc2

License

• open-source

Website

• Vendor: https://www.kernel.org/

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