CVE-2026-53189
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().
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | fadae2953072e9005c5f1d64e1049edb043494dc < 84b3212b166b446faea27ebebb7161405ffceef9, fadae2953072e9005c5f1d64e1049edb043494dc < 108963978a681c0c468d279cac2b930c27672877, fadae2953072e9005c5f1d64e1049edb043494dc < 459771c9cf30f378bdbd30fc65d17f7eb931bb59, fadae2953072e9005c5f1d64e1049edb043494dc < ae9d4caf6f133e884cf5fcda4982c493b35e5194 … |
| Linux | Linux | — | 4.19, 0 < 4.19, 5.10.259 ≤ 5.10.*, 5.15.210 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9
- https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877
- https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59
- https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194
- https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce
- https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad
- https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd
- https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8