Linux Kernel up to 7.0.9 drm drm_exec_fini objects information disclosure

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 7.0.9. This affects the function drm_exec_fini of the component drm. Performing a manipulation of the argument objects results in information disclosure. This vulnerability was named CVE-2026-52987. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.0.9. It has been classified as problematic. This affects the function drm_exec_fini of the component drm. The manipulation of the argument objects with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_exec_fini() in userq validate When new_addition is true, amdgpu_userq_vm_validate() calls drm_exec_fini(&exec) before iterating over the collected HMM ranges and calling amdgpu_ttm_tt_get_user_pages(). If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to unlock_all and calls drm_exec_fini(&exec) a second time on the same exec object. drm_exec_fini() is not idempotent: it frees exec->objects and may also drop exec->contended and finalize the ww acquire context. Route that error path directly to the range cleanup once exec has already been finalized. Issue found using a prototype static analysis tool and confirmed by code review. (cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-52987 since 06/09/2026. 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 06/24/2026). MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 7.0.10 eliminates this vulnerability. Applying the patch c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38/508babf310365f1107a2e8831c267c292a286818 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

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9

License

• open-source

Website

• Vendor: https://www.kernel.org/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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