{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-68732",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-68732"
  ],
  "published": "2025-12-24T10:35:22Z",
  "summary": "gpu: host1x: Fix race in syncpt alloc/free",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix race in syncpt alloc/free\n\nFix race condition between host1x_syncpt_alloc()\nand host1x_syncpt_put() by using kref_put_mutex()\ninstead of kref_put() + manual mutex locking.\n\nThis ensures no thread can acquire the\nsyncpt_mutex after the refcount drops to zero\nbut before syncpt_release acquires it.\nThis prevents races where syncpoints could\nbe allocated while still being cleaned up\nfrom a previous release.\n\nRemove explicit mutex locking in syncpt_release\nas kref_put_mutex() handles this atomically.",
  "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": "6.1.160",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-68732"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ca9388fba50dac2eb71c13702b7022a801bef90e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4aeaece518fa4436af93d1d8b786200d9656ff4b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6245cce711e2cdb2cc75c0bb8632952e36f8c972"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}