UBUNTU-CVE-2026-72174

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix hugetlb self-deadlock in pagemapscanptehole A PAGEMAPSCAN ioctl requesting PMSCANWPMATCHING on a hugetlb VMA hangs the calling thread, unkillably, as soon as the scan reaches an unpopulated part of the range:...

UBUNTU-CVE-2026-72213

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch In allochugetlbfolio, a single hcg pointer is used for both the rsvd and non-rsvd hugetlb cgroup charges. When mapchg is set, hugetlbcgroupchargecgrouprsvd stores the...

UBUNTU-CVE-2026-72175

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix makeuffdwphugepte prot-update race Patch series "userfaultfd/pagemap: pre-existing fixes". These are pre-existing bug fixes that were carried at the front of the userfaultfd RWP working-set-tracking series up...

UBUNTU-CVE-2026-74518

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix list corruption in allocatefileregionentries allocatefileregionentries tops up resv-regioncache with freshly allocated fileregion descriptors. The allocation uses GFPKERNEL, so resv-lock is dropped around it: the...

CVE-2026-74518

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix list corruption in allocatefileregionentries allocatefileregionentries tops up resv-regioncache with freshly allocated fileregion descriptors. The allocation uses GFPKERNEL, so resv-lock is dropped around it: the...

EUVD-2026-59711

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix list corruption in allocatefileregionentries allocatefileregionentries tops up resv-regioncache with freshly allocated fileregion descriptors. The allocation uses GFPKERNEL, so resv-lock is dropped around it: the...

CVE-2026-74518 mm/hugetlb: fix list corruption in allocate_file_region_entries()

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix list corruption in allocatefileregionentries allocatefileregionentries tops up resv-regioncache with freshly allocated fileregion descriptors. The allocation uses GFPKERNEL, so resv-lock is dropped around it: the...

CVE-2026-74518

CVE-2026-74518 — Linux kernel: mm/hugetlb list corruption in allocate_file_region_entries() fixed. The bug allowed a corrupted resv->region_cache when top‑up relied on list_splice() leaving a stale source head during a retry loop under concurrent mappings of hugetlbfs. The fix uses list_splice...

CVE-2026-72213

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch In allochugetlbfolio, a single hcg pointer is used for both the rsvd and non-rsvd hugetlb cgroup charges. When mapchg is set, hugetlbcgroupchargecgrouprsvd stores the...

CVE-2026-72175

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix makeuffdwphugepte prot-update race Patch series "userfaultfd/pagemap: pre-existing fixes". These are pre-existing bug fixes that were carried at the front of the userfaultfd RWP working-set-tracking series up...

CVE-2026-72174

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix hugetlb self-deadlock in pagemapscanptehole A PAGEMAPSCAN ioctl requesting PMSCANWPMATCHING on a hugetlb VMA hangs the calling thread, unkillably, as soon as the scan reaches an unpopulated part of the range:...

CVE-2026-72213 mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch In allochugetlbfolio, a single hcg pointer is used for both the rsvd and non-rsvd hugetlb cgroup charges. When mapchg is set, hugetlbcgroupchargecgrouprsvd stores the...

EUVD-2026-58971

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch In allochugetlbfolio, a single hcg pointer is used for both the rsvd and non-rsvd hugetlb cgroup charges. When mapchg is set, hugetlbcgroupchargecgrouprsvd stores the...

CVE-2026-72213 mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch In allochugetlbfolio, a single hcg pointer is used for both the rsvd and non-rsvd hugetlb cgroup charges. When mapchg is set, hugetlbcgroupchargecgrouprsvd stores the...

CVE-2026-72213

CVE-2026-72213 affects the Linux kernel hugetlb code path. The issue arises from using a single h_cg pointer for both rsvd and non-rsvd cgroup charges in alloc_hugetlb_folio(), causing the rsvd pointer to be overwritten and leading to a page_counter underflow during folio cleanup. The fix introdu...

EUVD-2026-58933

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix makeuffdwphugepte prot-update race Patch series "userfaultfd/pagemap: pre-existing fixes". These are pre-existing bug fixes that were carried at the front of the userfaultfd RWP working-set-tracking series up...

CVE-2026-72175 fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix makeuffdwphugepte prot-update race Patch series "userfaultfd/pagemap: pre-existing fixes". These are pre-existing bug fixes that were carried at the front of the userfaultfd RWP working-set-tracking series up...

CVE-2026-72175 fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix makeuffdwphugepte prot-update race Patch series "userfaultfd/pagemap: pre-existing fixes". These are pre-existing bug fixes that were carried at the front of the userfaultfd RWP working-set-tracking series up...

CVE-2026-72175

CVE-2026-72175修复针对 Linux 内核 fs/proc/task_mmu 中的 make_uffd_wp_huge_pte() 的 prot-update race。六项变更来自 patch series “userfaultfd/pagemap: pre-existing fixes”，用于 present 的 HugeTLB PTE 上状态更新时的时序竞态：在未调用对应的 ptep_modify_prot_start() 的情况下就执行 ptep_modify_prot_commit()，可能导致写入了过时的快照。修复通过对 present-PTE 分支采用与非 hu...

CVE-2026-72174

CVE-2026-72174 affects the Linux kernel’s hugetlb mmap/pagemap handling. The vulnerability arises in fs/proc/task_mmu during a PAGEMAP_SCAN with PM_SCAN_WP_MATCHING on a hugetlb VMA, where walking hole entries via pagemap_scan_pte_hole() leads to a deadlock: the thread holds a read lock while att...