{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-40148",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40148",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-11-12T10:23:26.841Z",
    "updatedAt": "2026-05-11T21:43:39.984Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "drm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions\n\nThe function dc_stream_set_cursor_attributes() currently dereferences\nthe `stream` pointer and nested members `stream->ctx->dc->current_state`\nwithout checking for NULL.\n\nAll callers of these functions, such as in\n`dcn30_apply_idle_power_optimizations()` and\n`amdgpu_dm_plane_handle_cursor_update()`, already perform NULL checks\nbefore calling these functions.\n\nFixes below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:336 dc_stream_program_cursor_attributes()\nerror: we previously assumed 'stream' could be null (see line 334)\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n    327 bool dc_stream_program_cursor_attributes(\n    328         struct dc_stream_state *stream,\n    329         const struct dc_cursor_attributes *attributes)\n    330 {\n    331         struct dc  *dc;\n    332         bool reset_idle_optimizations = false;\n    333\n    334         dc = stream ? stream->ctx->dc : NULL;\n                     ^^^^^^\nThe old code assumed stream could be NULL.\n\n    335\n--> 336         if (dc_stream_set_cursor_attributes(stream, attributes)) {\n                                                    ^^^^^^\nThe refactor added an unchecked dereference.\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n   313  bool dc_stream_set_cursor_attributes(\n   314          struct dc_stream_state *stream,\n   315          const struct dc_cursor_attributes *attributes)\n   316  {\n   317          bool result = false;\n   318\n   319          if (dc_stream_check_cursor_attributes(stream, stream->ctx->dc->current_state, attributes)) {\n                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Here.\nThis function used to check for if stream as NULL and return false at\nthe start. Probably we should add that back.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4465dd0e41e8223a46a41ce4fcdfc55fabd319d8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "01e793e7d4d402c473f1a61ca5824f086693be65"
            },
            {
              "version": "4465dd0e41e8223a46a41ce4fcdfc55fabd319d8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf4e4b97d0fdc66f04fc19d807e24dd8421b8f11"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.16"
            },
            {
              "version": "6.17.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}