{"cve":"CVE-2026-53189","nvd":{"published":"2026-06-25T09:16:36.327","modified":"2026-10-19T20:19:07.837","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: update file PMD counter before folio_put()\n\n__split_huge_pmd_locked() updates the file/shmem RSS counter after\ndropping the PMD mapping's folio reference.  If folio_put() drops the last\nreference, mm_counter_file() can later read freed folio state via\nfolio_test_swapbacked().\n\nMove the counter update before folio_put().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877","https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59","https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad","https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce","https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-53189","score":0.0013,"percentile":0.0258,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}