{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-64231",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-64231"
  ],
  "published": "2026-07-24T15:23:26Z",
  "summary": "drm/msm/dsi: don't dump registers past the mapped region",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dsi: don't dump registers past the mapped region\n\nOn DSI 6G platforms the IO address space is internally adjusted by\nio_offset. Later this adjusted address might be used for memory dumping.\nHowever the size that is used for memory dumping isn't adjusted to\naccount for the io_offset, leading to the potential access to the\nunmapped region. Lower ctrl_size by the io_offset value to prevent\naccess past the mapped area.\n\n msm_disp_snapshot_add_block+0x1d4/0x3c8 [msm] (P)\n msm_dsi_host_snapshot+0x4c/0x78 [msm]\n msm_dsi_snapshot+0x28/0x50 [msm]\n msm_disp_snapshot_capture_state+0x74/0x140 [msm]\n msm_disp_snapshot_state_sync+0x60/0x90 [msm]\n _msm_disp_snapshot_work+0x30/0x90 [msm]\n kthread_worker_fn+0xdc/0x460\n kthread+0x120/0x140\n\nPatchwork: https://patchwork.freedesktop.org/patch/721747/",
  "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": "6.1.175",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-64231"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-07-24T15:23:26Z"
  }
}