{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c7ba3653e9773256b2b08508a2ed2ca28ea7566b"
            },
            {
              "fixed": "ee9cfcf77a8e8af637396dc00966df5f701e661c"
            },
            {
              "fixed": "b781f90a9528555c709e59789550893581ef0be4"
            },
            {
              "fixed": "a2de1d71891a038a9346b2c1a72b88c8350f2479"
            },
            {
              "fixed": "7fc4fab4acc307ad2903312c195872b2953d32c3"
            },
            {
              "fixed": "7ae95c0275c330b5dbae806f8e431720edad776f"
            },
            {
              "fixed": "bb6f705b73b5f191f14ad004e2c8c4b615806187"
            },
            {
              "fixed": "c90954cdea4d6998ec345de0d840d030c145b89e"
            },
            {
              "fixed": "adf67034b1f61f7119295208085bfd43f85f56af"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.2.0"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53135.json"
  },
  "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 \u0026 How]\ndp_sdp_message_debugfs_write() dereferences connector-\u003ebase.state-\u003ecrtc\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 \u003c 36.\n\nFix both issues by:\n- Returning -ENODEV when connector-\u003ebase.state or state-\u003ecrtc is NULL\n- Clamping write_size to min(size, sizeof(data))\n\n(cherry picked from commit 6ab4c36a522842ff70474a1c0af2e40e50fc8300)",
  "id": "CVE-2026-53135",
  "modified": "2026-07-09T03:51:23.412114560Z",
  "published": "2026-06-25T08:38:24.216Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ae95c0275c330b5dbae806f8e431720edad776f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fc4fab4acc307ad2903312c195872b2953d32c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2de1d71891a038a9346b2c1a72b88c8350f2479"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adf67034b1f61f7119295208085bfd43f85f56af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b781f90a9528555c709e59789550893581ef0be4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb6f705b73b5f191f14ad004e2c8c4b615806187"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c90954cdea4d6998ec345de0d840d030c145b89e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee9cfcf77a8e8af637396dc00966df5f701e661c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53135.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53135"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs"
}