{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.95-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  pwrseq: core: fix use-after-free in pwrseq_debugfs_seq_next()  pwrseq_debugfs_seq_next() declares 'next' with __free(put_device), which causes put_device() to be called on the returned pointer when the variable goes out of scope.  This results in a use-after-free since the seq_file framework receives a pointer whose reference has already been dropped.  Simply removing __free(put_device) would fix the UAF but would leak the reference acquired by bus_find_next_device(), as stop() only calls up_read(\u0026pwrseq_sem) and never releases the device reference.  Fix this by making the reference counting consistent across all seq_file callbacks, matching the standard pattern used by PCI and SCSI:  - start(): use get_device() so it returns a referenced pointer. - next(): explicitly put_device(curr) to release the previous   device's reference (no NULL check needed - the seq_file framework   only calls next() while the previous return was non-NULL). - stop(): put_device(data) to release the last iterated device's   reference, with a NULL guard since stop() may be called with NULL   when start() returned NULL or next() reached end-of-sequence.",
  "id": "DEBIAN-CVE-2026-64251",
  "modified": "2026-09-14T16:47:34.198999911Z",
  "published": "2026-07-24T16:16:54.713Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64251"
    }
  ],
  "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-2026-64251"
  ]
}