{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ca0fb243c3bb53dbbd71d16c76f319bf923ee3d4"
            },
            {
              "fixed": "10c13c111d0d7f8e101c742feff264fc98e3f9f7"
            },
            {
              "fixed": "2d4a6f0702c5211e0be8b688c5fc24f082ec74d6"
            },
            {
              "fixed": "e927b36ae18b66b49219eaa9f46edc7b4fdbb25e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "e13689793b9c0e7b5749954e77f5f85e68fe7138"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.11.3"
            },
            {
              "fixed": "6.12"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.18.22"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43337.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL pointer dereference in dcn401_init_hw()\n\ndcn401_init_hw() assumes that update_bw_bounding_box() is valid when\nentering the update path. However, the existing condition:\n\n  ((!fams2_enable \u0026\u0026 update_bw_bounding_box) || freq_changed)\n\ndoes not guarantee this, as the freq_changed branch can evaluate to true\nindependently of the callback pointer.\n\nThis can result in calling update_bw_bounding_box() when it is NULL.\n\nFix this by separating the update condition from the pointer checks and\nensuring the callback, dc-\u003eclk_mgr, and bw_params are validated before\nuse.\n\nFixes the below:\n../dc/hwss/dcn401/dcn401_hwseq.c:367 dcn401_init_hw() error: we previously assumed 'dc-\u003eres_pool-\u003efuncs-\u003eupdate_bw_bounding_box' could be null (see line 362)\n\n(cherry picked from commit 86117c5ab42f21562fedb0a64bffea3ee5fcd477)",
  "id": "CVE-2026-43337",
  "modified": "2026-07-08T05:38:00.243096012Z",
  "published": "2026-05-08T13:31:22.967Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10c13c111d0d7f8e101c742feff264fc98e3f9f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d4a6f0702c5211e0be8b688c5fc24f082ec74d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e927b36ae18b66b49219eaa9f46edc7b4fdbb25e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43337.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43337"
    },
    {
      "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 pointer dereference in dcn401_init_hw()"
}