{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Fix NULL sink dereference in USB4 bandwidth functions  allocate_usb4_bandwidth_for_stream() and allocate_usb4_bandwidth() both use ASSERT(stream-\u003esink) before dereferencing stream-\u003esink-\u003elink. ASSERT is compiled out in production builds, so a NULL stream-\u003esink causes a NULL pointer dereference.  link_set_dpms_off() already guards two earlier accesses to stream-\u003esink with explicit NULL checks, confirming that stream-\u003esink can legitimately be NULL. The subsequent call to deallocate_usb4_bandwidth() had no equivalent guard.  Replace the ASSERT() calls with proper NULL checks that return false early, and add a matching stream-\u003esink guard at the call site in link_set_dpms_off() consistent with the surrounding pattern.  v2: Keep the existing ASSERT() calls for diagnostics (to report     unexpected NULL sink), and add explicit NULL checks that return false     before dereferencing stream-\u003esink. Also add a matching stream-\u003esink     guard at the deallocation call site in link_set_dpms_off(). (Alex)  (cherry picked from commit 98029a0ce61feb52c563f65349dd9b25f672e355)",
  "id": "DEBIAN-CVE-2026-99151",
  "modified": "2026-10-29T05:47:37.439132678Z",
  "published": "2026-10-28T11:17:35.207Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-99151"
    }
  ],
  "upstream": [
    "CVE-2026-99151"
  ]
}