In the Linux kernel, the following vulnerability has been resolved:

drm/v3d: Skip CSD when it has zeroed workgroups

A compute shader dispatch encodes its workgroup counts in the CFG0..CFG2
registers. Kicking off a dispatch with a zero count in any of the three
dimensions is invalid. First, the hardware will process 0 as 65536,
while the user-space driver exposes a maximum of 65535. Over that, a
submission with a zeroed workgroup dimension should be a no-op.

These zeroed counts can reach the dispatch path through an indirect CSD
job, whose workgroup counts are only known once the indirect buffer is
read and may legitimately be zero, but such scenario should only result in
a no-op.

Overwrite the indirect CSD job workgroup counts with the indirect BO
ones, even if they are zeroed, and don't submit the job to the hardware
when any of the workgroup counts is zero, so the job completes immediately
instead of running the shader.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
d223f98f02099b002903b9b22b56febae16ef80d affected < 9655b56b6de918e1c22b92f3880ae41b052cbd00
d223f98f02099b002903b9b22b56febae16ef80d affected < 11e6432836394e00d39e468cd514f9ddb66f1e49
d223f98f02099b002903b9b22b56febae16ef80d affected < 7f93fad5ea0affc9e1505dd0f7596c0fdb496213
Linux Linux affected
Version Status Constraints
5.3 affected —
0 unaffected < 5.3
6.18.36 unaffected ≤ 6.18.*
7.0.13 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/11e6432836394e00d39e468cd514f9ddb66f1e49 cve-icon
https://git.kernel.org/stable/c/7f93fad5ea0affc9e1505dd0f7596c0fdb496213 cve-icon
https://git.kernel.org/stable/c/9655b56b6de918e1c22b92f3880ae41b052cbd00 cve-icon
History

Thu, 25 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-665
CWE-770

Thu, 25 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Skip CSD when it has zeroed workgroups A compute shader dispatch encodes its workgroup counts in the CFG0..CFG2 registers. Kicking off a dispatch with a zero count in any of the three dimensions is invalid. First, the hardware will process 0 as 65536, while the user-space driver exposes a maximum of 65535. Over that, a submission with a zeroed workgroup dimension should be a no-op. These zeroed counts can reach the dispatch path through an indirect CSD job, whose workgroup counts are only known once the indirect buffer is read and may legitimately be zero, but such scenario should only result in a no-op. Overwrite the indirect CSD job workgroup counts with the indirect BO ones, even if they are zeroed, and don't submit the job to the hardware when any of the workgroup counts is zero, so the job completes immediately instead of running the shader.
Title drm/v3d: Skip CSD when it has zeroed workgroups
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-25T08:38:27.738Z

Reserved: 2026-06-09T07:44:35.387Z

Link: CVE-2026-53139

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-06-25T10:30:17Z

Weaknesses