CVE-2026-53189 mm/huge_memory: update file PMD counter before folio_put()

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: update file PMD counter before folioput splithugepmdlocked updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folioput drops the last reference, mmcounterfile can later read fre...

PT-2026-52285

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the split huge pmd locked function where the file or shmem Resident Set Size RSS counter is updated after the PMD mapping's folio reference is dropped. If the folio pu...