CVE-2026-53189High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: update file PMD counter before folio_put() __split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio referenc…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
Last analysed / modified upstream
0.1% → 0.1%
In the Linux kernel, the following vulnerability has been resolved:
mm/huge_memory: update file PMD counter before folio_put()
__split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked().
Move the counter update before folio_put().
Linux >= fadae2953072e9005c5f1d64e1049edb043494dc < 84b3212b166b446faea27ebebb7161405ffceef9Linux >= fadae2953072e9005c5f1d64e1049edb043494dc < 108963978a681c0c468d279cac2b930c27672877Linux >= fadae2953072e9005c5f1d64e1049edb043494dc < 459771c9cf30f378bdbd30fc65d17f7eb931bb59Linux >= fadae2953072e9005c5f1d64e1049edb043494dc < ae9d4caf6f133e884cf5fcda4982c493b35e5194Linux >= fadae2953072e9005c5f1d64e1049edb043494dc < 6c29a8ba084e89499ca77b947e07ae817f9c16ceLinux >= fadae2953072e9005c5f1d64e1049edb043494dc < 5f5b604e1e6bde4e889199168ee80fe8306d06adLinux >= fadae2953072e9005c5f1d64e1049edb043494dc < ed5b030931292c94133437ac5e5ff580e498eabdLinux >= fadae2953072e9005c5f1d64e1049edb043494dc < 8d878059924f12c1bc24556a92ec56add74de3c8Linux 4.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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