mm/huge_memory: update file PMD counter before folio_put() (Linux Linux)

CVE-2026-53189
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

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().

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected fadae2953072e9005c5f1d64e1049edb043494dc < 84b3212b166b446faea27ebebb7161405ffceef9 ; affected fadae2953072e9005c5f1d64e1049edb043494dc < 108963978a681c0c468d279cac2b930c27672877 ; affected fadae2953072e9005c5f1d64e1049edb043494dc < 459771c9cf30f378bdbd30fc65d17f7eb931bb59 ; affected fadae2953072e9005c5f1d64e1049edb043494dc < ae9d4caf6f133e884cf5fcda4982c493b35e5194 ; affected fadae2953072e9005c5f1d64e1049edb043494dc < 6c29a8ba084e89499ca77b947e07ae817f9c16ce ; affected fadae2953072e9005c5f1d64e1049edb043494dc < 5f5b604e1e6bde4e889199168ee80fe8306d06ad
Linux · Linuxaffected 4.19 ; unaffected 0 < 4.19 ; unaffected 5.10.259 ≤ 5.10.* ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.143 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD