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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-53189

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

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Status
Published
Published
Updated
Assigning organization
Linux

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • fadae2953072e9005c5f1d64e1049edb043494dc to < 84b3212b166b446faea27ebebb7161405ffceef9affected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < 108963978a681c0c468d279cac2b930c27672877affected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < 459771c9cf30f378bdbd30fc65d17f7eb931bb59affected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < ae9d4caf6f133e884cf5fcda4982c493b35e5194affected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < 6c29a8ba084e89499ca77b947e07ae817f9c16ceaffected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < 5f5b604e1e6bde4e889199168ee80fe8306d06adaffected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < ed5b030931292c94133437ac5e5ff580e498eabdaffected
  • fadae2953072e9005c5f1d64e1049edb043494dc to < 8d878059924f12c1bc24556a92ec56add74de3c8affected

Linux Linux

Default version status: affected

  • 4.19affected
  • 0 to < 4.19unaffected
  • 5.10.259 to ≤ 5.10.*unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.176 to ≤ 6.1.*unaffected
  • 6.6.143 to ≤ 6.6.*unaffected
  • 6.12.94 to ≤ 6.12.*unaffected
  • 6.18.36 to ≤ 6.18.*unaffected
  • 7.0.13 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References