Linux Kernel up to 6.12.93/6.18.35/7.0.12 drm v3d_rewrite_csd_job_wg_counts_from_indirect buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.12.93/6.18.35/7.0.12. This affects the function v3d_rewrite_csd_job_wg_counts_from_indirect of the component drm. Performing a manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2026-53140. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.12.93/6.18.35/7.0.12. This affects the function v3d_rewrite_csd_job_wg_counts_from_indirect of the component drm. 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: drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups v3d_rewrite_csd_job_wg_counts_from_indirect() maps both the indirect buffer and the workgroup buffer and is expected to release them before returning. When any of the workgroup counts read from the buffer is zero, the function bailed out early and skipped the cleanup, leaking the vaddr mappings of both BOs. Jump to the cleanup path instead of returning directly, so the mappings are always dropped.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-53140 since 06/09/2026. 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 $5k-$25k at the moment (estimation calculated on 06/25/2026).

Upgrading to version 6.12.94, 6.18.36 or 7.0.13 eliminates this vulnerability. Applying the patch 0b59d0946913a0df7d1a033013e259e9b6a76546/90b629269088a9fe24a02c032be9f08357f47873/60ebeb23eaf3d7fd2e0551fe304309305e31d424/ae7676952790f421c40918e2586a2c9f12a682b6 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.

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

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.12.0
• 6.12.1
• 6.12.2
• 6.12.3
• 6.12.4
• 6.12.5
• 6.12.6
• 6.12.7
• 6.12.8
• 6.12.9
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• 6.12.11
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• 6.12.87
• 6.12.88
• 6.12.89
• 6.12.90
• 6.12.91
• 6.12.92
• 6.12.93
• 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
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• 6.18.11
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• 6.18.35
• 7.0.0
• 7.0.1
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• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12

License

• open-source

Website

• Vendor: https://www.kernel.org/

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Entryinfo

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

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