mm/hugetlb: restore reservation on error in hugetlb folio copy paths

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CVE-2026-53154

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore reservation on error in hugetlb folio copy paths Two sites in mm/hugetlb.c allocate a hugetlb folio via allochugetlbfolio consuming a VMA reservation and then call copyuserlargefolio, which became int-returnin...

UBUNTU-CVE-2026-53154

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore reservation on error in hugetlb folio copy paths Two sites in mm/hugetlb.c allocate a hugetlb folio via allochugetlbfolio consuming a VMA reservation and then call copyuserlargefolio, which became int-returnin...

EUVD-2026-39245

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore reservation on error in hugetlb folio copy paths Two sites in mm/hugetlb.c allocate a hugetlb folio via allochugetlbfolio consuming a VMA reservation and then call copyuserlargefolio, which became int-returnin...

CVE-2026-53154 mm/hugetlb: restore reservation on error in hugetlb folio copy paths

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore reservation on error in hugetlb folio copy paths Two sites in mm/hugetlb.c allocate a hugetlb folio via allochugetlbfolio consuming a VMA reservation and then call copyuserlargefolio, which became int-returnin...

PT-2026-52250

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel within the hugetlb folio copy paths. When alloc hugetlb folio is used to allocate a hugetlb folio, it consumes a Virtual Memory Area VMA reservation. ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: hugetlb, userfaultfd: fixed the issue of reservation restoration when an error occurs with userfaultfd. Currently, in the iscontinue case within hugetlbmcopyatomicpte, if we use “goto outreleaseunlock;“ in cases where idx =...

DEBIAN-CVE-2021-47214

In the Linux kernel, the following vulnerability has been resolved: hugetlb, userfaultfd: fix reservation restore on userfaultfd error Currently in the iscontinue case in hugetlbmcopyatomicpte, if we bail out using "goto outreleaseunlock;" in the cases where idx = size, or !hugeptenone, the code...

CVE-2021-47214 hugetlb, userfaultfd: fix reservation restore on userfaultfd error

In the Linux kernel, the following vulnerability has been resolved: hugetlb, userfaultfd: fix reservation restore on userfaultfd error Currently in the iscontinue case in hugetlbmcopyatomicpte, if we bail out using "goto outreleaseunlock;" in the cases where idx = size, or !hugeptenone, the code...

CVE-2021-47214

CVE-2021-47214 affects Linux kernel hugetlb/userfaultfd handling. The fix corrects reservation restoration on userfaultfd error in hugetlb_mcopy_atomic_pte() by treating the is_continue path like pagecache insertion and altering the new_pagecache_page flag (renamed to page_in_pagecache) so restor...

PT-2021-30775

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.5 Description The issue concerns a problem with reservation restore on userfaultfd error in hugetlb and userfaultfd. The actual impact and attack plausibility have not yet been proven. Recommendations For...