{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53552",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-53552"
  ],
  "published": "2025-10-04T15:17:41Z",
  "summary": "drm/i915: mark requests for GuC virtual engines to avoid use-after-free",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: mark requests for GuC virtual engines to avoid use-after-free\n\nReferences to i915_requests may be trapped by userspace inside a\nsync_file or dmabuf (dma-resv) and held indefinitely across different\nproceses. To counter-act the memory leaks, we try to not to keep\nreferences from the request past their completion.\nOn the other side on fence release we need to know if rq->engine\nis valid and points to hw engine (true for non-virtual requests).\nTo make it possible extra bit has been added to rq->execution_mask,\nfor marking virtual engines.\n\n(cherry picked from commit 280410677af763f3871b93e794a199cfcf6fb580)",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.54",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53552"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8017a27cec32eac8c8f9430b0a3055840136b856"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7fb464d52fa41c31a6fd1ad82888e67c65935d94"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5eefc5307c983b59344a4cb89009819f580c84fa"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z"
  }
}