{
  "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:  octeontx2-af: fix cn20k mailbox lifetime on repeated rvu_mbox_init()  rvu_mbox_init() is called separately for AF-PF mailboxes during probe and for AF-VF mailboxes when SR-IOV is enabled.  Each call used to allocate a new ng_rvu object, leaking the first allocation when the pointer was overwritten on the second call.  Sharing one ng_rvu across both paths exposed several teardown bugs: the error path freed all cn20k mailbox DMA and kfree()d ng_rvu even when only the failing init type should be unwound, leaving live AF-PF mailbox memory in use after an AF-VF init failure.  mutex_init() was also re-run on the AF-VF path while AF-PF mailbox handlers could still hold rvu-\u003embox_lock.  Probe and SR-IOV failure paths did not release cn20k mailbox DMA either, since cleanup only happened in rvu_remove().  Allocate ng_rvu once with devm_kzalloc(), initialize mbox_lock in the same block, unwind only the mailbox memory for the failing init type, and free cn20k mailbox DMA from the probe and pci_enable_sriov() error paths.",
  "id": "DEBIAN-CVE-2026-90079",
  "modified": "2026-09-18T04:47:35.444341516Z",
  "published": "2026-09-17T17:16:57.210Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-90079"
    }
  ],
  "upstream": [
    "CVE-2026-90079"
  ]
}