{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2631ac1ac328189031d1aefbbd4929050f72fb23"
            },
            {
              "fixed": "b37a978e6d8c33fbfa4abc5dcca4c7cfc6d01f22"
            },
            {
              "fixed": "4ae3e16f4b3bf64140f773629b765d605ee079a9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.14.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53313.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Avoid NULL dereference in dc_dmub_srv error paths\n\nIn dc_dmub_srv_log_diagnostic_data() and\ndc_dmub_srv_enable_dpia_trace().\n\nBoth functions check:\n\n  if (!dc_dmub_srv || !dc_dmub_srv-\u003edmub)\n\nand then call DC_LOG_ERROR() inside that block.\n\nDC_LOG_ERROR() uses dc_dmub_srv-\u003ectx internally. So if\ndc_dmub_srv is NULL, the logging itself can dereference a\nNULL pointer and cause a crash.\n\nFix this by splitting the checks.\n\nFirst check if dc_dmub_srv is NULL and return immediately.\nThen check dc_dmub_srv-\u003edmub and log the error only when\ndc_dmub_srv is valid.\n\nFixes the below:\n../display/dc/dc_dmub_srv.c:962 dc_dmub_srv_log_diagnostic_data() error: we previously assumed 'dc_dmub_srv' could be null (see line 961)\n../display/dc/dc_dmub_srv.c:1167 dc_dmub_srv_enable_dpia_trace() error: we previously assumed 'dc_dmub_srv' could be null (see line 1166)",
  "id": "CVE-2026-53313",
  "modified": "2026-07-08T05:36:31.911658400Z",
  "published": "2026-06-26T19:41:06.568Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ae3e16f4b3bf64140f773629b765d605ee079a9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b37a978e6d8c33fbfa4abc5dcca4c7cfc6d01f22"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53313.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53313"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "drm/amd/display: Avoid NULL dereference in dc_dmub_srv error paths"
}