Linux Kernel up to 6.18.13/6.19.3 amdxdna aie2_release_resource use after free

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.18.13/6.19.3. The impacted element is the function aie2_release_resource of the component amdxdna. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2026-45980. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.18.13/6.19.3 and classified as critical. This issue affects the function aie2_release_resource of the component amdxdna. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Stop job scheduling across aie2_release_resource() Running jobs on a hardware context while it is in the process of releasing resources can lead to use-after-free and crashes. Fix this by stopping job scheduling before calling aie2_release_resource() and restarting it after the release completes. Additionally, aie2_sched_job_run() now checks whether the hardware context is still active.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2026-45980 since 05/13/2026. The exploitation is known to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/16/2026).

Upgrading to version 6.18.14 or 6.19.4 eliminates this vulnerability. Applying the patch b79d31dce49b50c79620389b3639280802a86960/688c3ff079b10e4600f040944430d3d4ff448a15/f1370241fe8045702bc9d0812b996791f0500f1b 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.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.18.0
• 6.18.1
• 6.18.2
• 6.18.3
• 6.18.4
• 6.18.5
• 6.18.6
• 6.18.7
• 6.18.8
• 6.18.9
• 6.18.10
• 6.18.11
• 6.18.12
• 6.18.13
• 6.19.0
• 6.19.1
• 6.19.2
• 6.19.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

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