{
  "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:  ARM: 9484/1: enable interrupts when unhandled user faults are triggered  PREEMPT_RT requires interrupts to be enabled when sending signals.  When do_DataAbort()/do_PrefetchAbort() triggers unhandled user faults, that is `inf-\u003efn()` return a non-zero value, and the interrupts are not enabled within the hook function, force_sig_fault() will be called with interrupts disabled.  This can be triggered by user programs executing the bkpt instruction, with kernel config CONFIG_PERF_EVENTS=n.  Enable interrupts in do_DataAbort()/do_PrefetchAbort() when unhandled user faults are triggered to fix the issue.",
  "id": "DEBIAN-CVE-2026-90304",
  "modified": "2026-09-18T04:47:26.064671495Z",
  "published": "2026-09-17T17:17:28.050Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-90304"
    }
  ],
  "upstream": [
    "CVE-2026-90304"
  ]
}