{
  "cveId": "CVE-2026-53139",
  "url": "https://patchblox.com/security/cve/CVE-2026-53139",
  "summary": "CVE-2026-53139 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-53139, released June 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "drm/v3d: Skip CSD when it has zeroed workgroups",
  "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\u0027t submit the job to the hardware when any of the workgroup counts is zero, so the job completes immediately instead of running the shader.",
  "published": "2026-06-25T09:16:31Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00123,
  "epssPercentile": 0.0206,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53139",
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  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
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    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}