CVE-2026-53189
mm/huge_memory: update file PMD counter before folio_put()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 25, 2026 |
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Affected Versions
Linux / Linux
fadae2953072e9005c5f1d64e1049edb043494dc < 84b3212b166b446faea27ebebb7161405ffceef9 fadae2953072e9005c5f1d64e1049edb043494dc < 108963978a681c0c468d279cac2b930c27672877 fadae2953072e9005c5f1d64e1049edb043494dc < 459771c9cf30f378bdbd30fc65d17f7eb931bb59 fadae2953072e9005c5f1d64e1049edb043494dc < ae9d4caf6f133e884cf5fcda4982c493b35e5194 fadae2953072e9005c5f1d64e1049edb043494dc < 6c29a8ba084e89499ca77b947e07ae817f9c16ce fadae2953072e9005c5f1d64e1049edb043494dc < 5f5b604e1e6bde4e889199168ee80fe8306d06ad fadae2953072e9005c5f1d64e1049edb043494dc < ed5b030931292c94133437ac5e5ff580e498eabd fadae2953072e9005c5f1d64e1049edb043494dc < 8d878059924f12c1bc24556a92ec56add74de3c8
Linux / Linux
4.19
References
git.kernel.org: https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9 git.kernel.org: https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877 git.kernel.org: https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59 git.kernel.org: https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194 git.kernel.org: https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce git.kernel.org: https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad git.kernel.org: https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd git.kernel.org: https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8