CVE-2026-53189
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < 84b3212b166b446faea27ebebb7161405ffceef9 | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < 108963978a681c0c468d279cac2b930c27672877 | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < 459771c9cf30f378bdbd30fc65d17f7eb931bb59 | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < ae9d4caf6f133e884cf5fcda4982c493b35e5194 | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < 6c29a8ba084e89499ca77b947e07ae817f9c16ce | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < 5f5b604e1e6bde4e889199168ee80fe8306d06ad | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < ed5b030931292c94133437ac5e5ff580e498eabd | affected |
| Linux | Linux | fadae2953072e9005c5f1d64e1049edb043494dc < 8d878059924f12c1bc24556a92ec56add74de3c8 | affected |
| Linux | Linux | 4.19 | affected |
| Linux | Linux | 0 < 4.19 | unaffected |
| Linux | Linux | 5.10.259 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.210 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.176 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.143 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.94 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.36 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.13 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- 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
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