{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-53135",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-53135"
  ],
  "published": "2026-06-25T08:41:40Z",
  "summary": "drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs\n\n[Why & How]\ndp_sdp_message_debugfs_write() dereferences connector->base.state->crtc\nwithout checking for NULL. A connector can be connected but not bound to\nany CRTC (e.g. after hot-plug before the next atomic commit), causing a\nkernel crash when writing to the sdp_message debugfs node.\n\nThe function also ignores the user-provided size argument and always\npasses 36 bytes to copy_from_user(), reading past the user buffer when\nsize < 36.\n\nFix both issues by:\n- Returning -ENODEV when connector->base.state or state->crtc is NULL\n- Clamping write_size to min(size, sizeof(data))\n\n(cherry picked from commit 6ab4c36a522842ff70474a1c0af2e40e50fc8300)",
  "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": "6.1.176",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53135"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ee9cfcf77a8e8af637396dc00966df5f701e661c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b781f90a9528555c709e59789550893581ef0be4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a2de1d71891a038a9346b2c1a72b88c8350f2479"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7fc4fab4acc307ad2903312c195872b2953d32c3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7ae95c0275c330b5dbae806f8e431720edad776f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bb6f705b73b5f191f14ad004e2c8c4b615806187"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c90954cdea4d6998ec345de0d840d030c145b89e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/adf67034b1f61f7119295208085bfd43f85f56af"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-25T08:41:40Z"
  }
}