CVE-2025-40110 (GCVE-0-2025-40110)

Vulnerability from cvelistv5 – Published: 2025-11-12 01:07 – Updated: 2026-05-11 21:42
VLAI
Title
drm/vmwgfx: Fix a null-ptr access in the cursor snooper
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix a null-ptr access in the cursor snooper Check that the resource which is converted to a surface exists before trying to use the cursor snooper on it. vmw_cmd_res_check allows explicit invalid (SVGA3D_INVALID_ID) identifiers because some svga commands accept SVGA3D_INVALID_ID to mean "no surface", unfortunately functions that accept the actual surfaces as objects might (and in case of the cursor snooper, do not) be able to handle null objects. Make sure that we validate not only the identifier (via the vmw_cmd_res_check) but also check that the actual resource exists before trying to do something with it. Fixes unchecked null-ptr reference in the snooping code.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6856 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < 3332212e93d0f6e24f8fe79f975e077c4e68ca39 (git)
Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < 86aae7053d2da3fdfde7b2e84d86e4af50490505 (git)
Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < af9d88cbf0fce52f465978360542ef679713491f (git)
Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < 299cfb5a7deabdf9ecd30071755672af0aced5eb (git)
Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < 13c9e4ed125e19484234c960efe5ac9c55119523 (git)
Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < b6fca0a07989f361ceda27cb2d09c555d4d4a964 (git)
Affected: c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 , < 5ac2c0279053a2c5265d46903432fb26ae2d0da2 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.113 , ≤ 6.6.* (semver)
Unaffected: 6.12.54 , ≤ 6.12.* (semver)
Unaffected: 6.17.4 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "dateReserved": "2025-04-16T07:20:57.167Z",
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          },
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            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/vmwgfx: Corrige un acceso a puntero nulo en el rastreador de cursor\n\nVerifique que el recurso que se convierte en una superficie existe antes de intentar usar el rastreador de cursor en \u00e9l.\n\nvmw_cmd_res_check permite identificadores expl\u00edcitamente inv\u00e1lidos (SVGA3D_INVALID_ID) porque algunos comandos svga aceptan SVGA3D_INVALID_ID para significar \u201csin superficie\u201d; desafortunadamente, las funciones que aceptan las superficies reales como objetos podr\u00edan (y en el caso del rastreador de cursor, no lo hacen) ser capaces de manejar objetos nulos. Aseg\u00farese de que validamos no solo el identificador (a trav\u00e9s de vmw_cmd_res_check) sino que tambi\u00e9n verificamos que el recurso real existe antes de intentar hacer algo con \u00e9l.\n\nCorrige la referencia de puntero nulo sin verificar en el c\u00f3digo de rastreo."
          }
        ],
        "id": "CVE-2025-40110",
        "lastModified": "2026-10-19T21:10:00.160",
        "metrics": {},
        "published": "2025-11-12T02:15:32.900",
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      "current_release_date": "2026-06-30T10:21:08+00:00",
      "cve": "CVE-2025-40110",
      "id": "CVE-2025-40110",
      "initial_release_date": "2025-11-12T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/vmwgfx: Fix a null-ptr access in the cursor snooper",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40110.json",
      "version": "3"
    }
  }
}



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