{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.13-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  net: mctp: usb: fix race between urb completion and rx_retry cancellation  It's possible that sequencing between setting -\u003estopped and cancelling the rx_retry work (in ndo_stop) could leave us with an urb queued:      T1: ndo_stop                  T2: rx_retry_work     ------------                  ----------------                                   LD: -\u003estopped =\u003e false     ST: -\u003estopped \u003c= true     usb_kill_urb()                                   mctp_usb_rx_queue()                                     usb_submit_urb()     cancel_delayed_work_sync()  That urb completion can then re-schedule rx_retry_work.  Strenghen the sequencing between the stop (preventing another requeue) and the cancel by updating both atomically under a new rx lock. After setting -\u003erx_stopped, and cancelling pending work, we know that the requeue cannot occur, so all that's left is killing any pending urb.",
  "id": "DEBIAN-CVE-2026-63874",
  "modified": "2026-09-14T16:47:33.111022176Z",
  "published": "2026-07-19T15:16:54.450Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-63874"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-63874"
  ]
}