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// vulnerability record
cached · NVD via COSMOS syncCVE-2026-53189
HIGHpublished 2026-06-25 09:16 UTC · 3 days ago · modified 2026-06-28 08:16 UTC
7.8
CVSS / 10
// description
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().
// cvss 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
// references (8)
- 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