{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4c8b5e5b9776ad08138d79b14238c5742b32911b",
              "status": "affected",
              "version": "0b1eebd359685dd681f6e0df5540a5bb985a27bf",
              "versionType": "git"
            },
            {
              "lessThan": "55a67aa89342545b89f469dea6f29bfb6fac6f3d",
              "status": "affected",
              "version": "8fa813b7fd1eccbed13e126166cf764f1f11a7d3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7.2.13",
              "status": "affected",
              "version": "7.2.9",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.13",
                  "versionStartIncluding": "7.2.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL sink dereference in USB4 bandwidth functions\n\nallocate_usb4_bandwidth_for_stream() and allocate_usb4_bandwidth() both\nuse ASSERT(stream-\u003esink) before dereferencing stream-\u003esink-\u003elink. ASSERT\nis compiled out in production builds, so a NULL stream-\u003esink causes a\nNULL pointer dereference.\n\nlink_set_dpms_off() already guards two earlier accesses to stream-\u003esink\nwith explicit NULL checks, confirming that stream-\u003esink can legitimately\nbe NULL. The subsequent call to deallocate_usb4_bandwidth() had no\nequivalent guard.\n\nReplace the ASSERT() calls with proper NULL checks that return false\nearly, and add a matching stream-\u003esink guard at the call site in\nlink_set_dpms_off() consistent with the surrounding pattern.\n\nv2: Keep the existing ASSERT() calls for diagnostics (to report\n    unexpected NULL sink), and add explicit NULL checks that return false\n    before dereferencing stream-\u003esink. Also add a matching stream-\u003esink\n    guard at the deallocation call site in link_set_dpms_off(). (Alex)\n\n(cherry picked from commit 98029a0ce61feb52c563f65349dd9b25f672e355)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T10:35:06.866Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4c8b5e5b9776ad08138d79b14238c5742b32911b"
        },
        {
          "url": "https://git.kernel.org/stable/c/55a67aa89342545b89f469dea6f29bfb6fac6f3d"
        }
      ],
      "title": "drm/amd/display: Fix NULL sink dereference in USB4 bandwidth functions",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-99151",
    "datePublished": "2026-10-28T10:35:06.866Z",
    "dateReserved": "2026-09-25T10:25:14.396Z",
    "dateUpdated": "2026-10-28T10:35:06.866Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}