UBUNTU-CVE-2026-53165

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

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...

CVE-2026-53189

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...

CVE-2026-53189

CVE-2026-53189 affects the Linux kernel memory management for huge pages (mm/huge_memory). The vulnerability arises from the order of operations when splitting a huge PMD: the RSS/file counters are updated after releasing the folio reference, which can let freed folio state be observed by mm_coun...

EUVD-2026-39280

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...

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...

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...

EUVD-2026-39256

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53165

CVE-2026-53165 describes a race in the Linux kernel iomap subsystem where, during buffered read error reporting, a separate in-flight read can detach a folio and set folio->mapping to NULL before an error is reported, leading to a NULL dereference of folio->mapping in fserror_report_io(). T...

CVE-2026-53165 iomap: avoid potential null folio->mapping deref during error reporting

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53165 iomap: avoid potential null folio->mapping deref during error reporting

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

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

The CVE-2026-53154 issue affects the Linux kernel mm/hugetlb path where, on error during copy of huge pages, the per-VMA reservation can leak despite free_huge_folio() restoring the global pool. Concrete details from connected sources show that two code paths allocate a hugetlb folio (alloc_huget...

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...

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...

PT-2026-52285

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...

PT-2026-52261

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the iomap subsystem during buffered read failures. The function iomap finish folio read reports errors using fserror report iofolio-mapping-host, ... after...

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. ...

EUVD-2026-38828

In the Linux kernel, the following vulnerability has been resolved: ceph: put folios not suitable for writeback The batch holds references to the folios see filemapgetfolios, foliobatchrelease, so we need to folioput the folios we remove. Tested on v6.18...

CVE-2026-52960

In the Linux kernel, the following vulnerability has been resolved: ceph: put folios not suitable for writeback The batch holds references to the folios see filemapgetfolios, foliobatchrelease, so we need to folioput the folios we remove. Tested on v6.18...