{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "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"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  serial: core: clear freed pointers on uart_register_driver() failure  uart_register_driver() leaves drv-\u003estate pointing to freed memory when tty_alloc_driver() fails. If tty_register_driver() fails, drv-\u003etty_driver also retains a pointer after its reference is dropped.  Drivers that use drv-\u003estate as an \"already registered\" flag can then skip registration on the next probe and pass the freed state to uart_add_one_port().  This issue was found with failslab on QEMU's raspi1ap board by failing registration and binding the PL011 port again.  Clear both pointers on their failure paths, as uart_unregister_driver() already does.",
  "id": "DEBIAN-CVE-2026-90336",
  "modified": "2026-09-18T04:47:33.779400884Z",
  "published": "2026-09-17T17:17:32.180Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-90336"
    }
  ],
  "upstream": [
    "CVE-2026-90336"
  ]
}