drm/v3d: Skip CSD when it has zeroed workgroups
Summary
| CVE | CVE-2026-53139 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-25 09:16:31 UTC |
| Updated | 2026-07-04 12:16:59 UTC |
| 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. |
Risk And Classification
EPSS: 0.001660000 probability, percentile 0.061410000 (date 2026-07-03)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d b3a8dd72b0d008ff142880b4dbe5ca37dcf962b4 git | Not specified |
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d 8b51c5406ad748c3d5575b66b6009b5dbbc08b80 git | Not specified |
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d abb069fdf51a9ddabcc1ed125dafe54e2089900b git | Not specified |
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d ad166139d123dc162e8636f0c7962516d04074e1 git | Not specified |
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d 9655b56b6de918e1c22b92f3880ae41b052cbd00 git | Not specified |
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d 11e6432836394e00d39e468cd514f9ddb66f1e49 git | Not specified |
| CNA | Linux | Linux | affected d223f98f02099b002903b9b22b56febae16ef80d 7f93fad5ea0affc9e1505dd0f7596c0fdb496213 git | Not specified |
| CNA | Linux | Linux | affected 5.3 | Not specified |
| CNA | Linux | Linux | unaffected 5.3 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.211 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.177 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.144 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.95 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.36 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.13 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/abb069fdf51a9ddabcc1ed125dafe54e2089900b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/ad166139d123dc162e8636f0c7962516d04074e1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9655b56b6de918e1c22b92f3880ae41b052cbd00 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/11e6432836394e00d39e468cd514f9ddb66f1e49 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7f93fad5ea0affc9e1505dd0f7596c0fdb496213 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b3a8dd72b0d008ff142880b4dbe5ca37dcf962b4 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8b51c5406ad748c3d5575b66b6009b5dbbc08b80 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.