{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-68234",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-68234"
  ],
  "published": "2026-08-10T12:08:00Z",
  "summary": "drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved\n\namdgpu_bo_create_reserved() only allocates a new BO when\n*bo_ptr (struct amdgpu_bo **bo_ptr as input parameter) is\nNULL, it simply skips creation when *bo_ptr is non-NULL.\nBut it unconditionally reserves, pins, gart allocates\nand maps the BO afterwards.\n\nWhen the same non-NULL BO pointer is passed in again,\nfor example firmware buffers that live in adev and are\nre-loaded on every resume / cp_resume / start\nunder AMDGPU_FW_LOAD_DIRECT, amdgpu_bo_pin() just increases\npin_count unconditionally, however the matching teardown only unpins\nonce, so pin_count never drops to zero, so TTM is not able\nto move, swap or evict a BO, causing BO leaks.\n\nThis commit fixes this issue by only pinning the bo\nonce at creation, and repeated calls no longer\ntake additional pin references.\n\n(cherry picked from commit 3ddc0ae76202c447b6aec61e907b852bc94671cf)",
  "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": "6.1.183",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-68234"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7aea619d9f186dcf0f1289879e9edb69d2b56639"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b572d0814c1366701ca704286589fab025802566"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e06e0885725a16304b7723aeb478a78cca9dc96a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2f390b4c83011452753fd84972f657d2b00a952b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ba7b6444097a73ccd3d3ac9e2be4ebb73d226460"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9743f60013273987abf415dc47474683d22aaee9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a2f895f3c852063258d62e9f74b081de07ca95df"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-19T16:47:12Z"
  }
}