{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.12-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Fix NULL pointer dereference in dcn401_init_hw()  dcn401_init_hw() assumes that update_bw_bounding_box() is valid when entering the update path. However, the existing condition:    ((!fams2_enable \u0026\u0026 update_bw_bounding_box) || freq_changed)  does not guarantee this, as the freq_changed branch can evaluate to true independently of the callback pointer.  This can result in calling update_bw_bounding_box() when it is NULL.  Fix this by separating the update condition from the pointer checks and ensuring the callback, dc-\u003eclk_mgr, and bw_params are validated before use.  Fixes the below: ../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)  (cherry picked from commit 86117c5ab42f21562fedb0a64bffea3ee5fcd477)",
  "id": "DEBIAN-CVE-2026-43337",
  "modified": "2026-09-14T16:47:39.719294139Z",
  "published": "2026-05-08T14:16:43.517Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-43337"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-43337"
  ]
}