{
  "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"
            },
            {
              "fixed": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  gfs2: fix quota init duplicate scan  gfs2_quota_init() checks for duplicate quota_change IDs while holding qd_lock and the quota hash bucket bitlock. That path used gfs2_qd_search_bucket(), which takes a lockref reference via lockref_get_not_dead().  On PREEMPT_RT this may sleep, which is not allowed under the bucket bitlock, triggering \"sleeping function called from invalid context\".  Use a no-ref bucket lookup in this path, then continue duplicate handling without taking a lockref there.  Refactor gfs2_qd_search_bucket() to build on top of the no-ref helper so lookup traversal stays in one place.  This patch fixes a bug reported by syzbot.",
  "id": "DEBIAN-CVE-2026-97521",
  "modified": "2026-09-25T04:47:21.841474958Z",
  "published": "2026-09-24T17:17:30.160Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-97521"
    }
  ],
  "upstream": [
    "CVE-2026-97521"
  ]
}