{
  "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:  kernel/fork: clear PF_BLOCK_TS in copy_process()  PF_BLOCK_TS is only set in blk_time_get_ns() when current-\u003eplug is non-NULL, and blk_finish_plug() clears it via __blk_flush_plug() before NULLing the plug pointer.  copy_process() breaks the invariant by inheriting PF_BLOCK_TS from the parent while resetting the child's plug to NULL.  Clear PF_BLOCK_TS alongside that assignment so callers can rely on \"PF_BLOCK_TS set implies current-\u003eplug != NULL\" and dereference current-\u003eplug unguarded.",
  "id": "DEBIAN-CVE-2026-64253",
  "modified": "2026-09-14T16:47:49.134078403Z",
  "published": "2026-07-24T16:16:55.017Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64253"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-64253"
  ]
}