CVE-2026-53139
Estado: AnalizadaMedia (5.5)—
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.
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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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/11e6432836394e00d39e468cd514f9ddb66f1e49
- https://git.kernel.org/stable/c/7f93fad5ea0affc9e1505dd0f7596c0fdb496213
- https://git.kernel.org/stable/c/8b51c5406ad748c3d5575b66b6009b5dbbc08b80
- https://git.kernel.org/stable/c/9655b56b6de918e1c22b92f3880ae41b052cbd00
- https://git.kernel.org/stable/c/abb069fdf51a9ddabcc1ed125dafe54e2089900b
- https://git.kernel.org/stable/c/ad166139d123dc162e8636f0c7962516d04074e1
- https://git.kernel.org/stable/c/b3a8dd72b0d008ff142880b4dbe5ca37dcf962b4
JSON original (NVD)
Mostrar
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