Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021634)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021634 advisory. In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpect...

CVE-2026-43286

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore failed global reservations to subpool Commit a833a693a490 "mm: hugetlb: fix incorrect fallback for subpool" fixed an underflow error for hstate-resvhugepages caused by incorrectly attributing globally requeste...

CVE-2026-43286

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore failed global reservations to subpool Commit a833a693a490 "mm: hugetlb: fix incorrect fallback for subpool" fixed an underflow error for hstate-resvhugepages caused by incorrectly attributing globally requeste...

CVE-2026-43286 mm/hugetlb: restore failed global reservations to subpool

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore failed global reservations to subpool Commit a833a693a490 "mm: hugetlb: fix incorrect fallback for subpool" fixed an underflow error for hstate-resvhugepages caused by incorrectly attributing globally requeste...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Set the hugetlb mmap base address to be aligned with the pmd size. With the ltp test case “testcases/bin/hugefork02”, there is a dmesg error report message, such as: kernel BUG at mm/hugetlb.c:5550! Oops - BUG1: CPU: 0...

Astra Linux - уязвимость в linux-5.15, linux-6.1, linux-5.10

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: Independent PMD page table shared count The refcount of the folio may be unexpectedly increased through functions like trygetfolio by callers such as splithugepages. In hugepmdunshare, we use the refcount to check...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fixed the issue where folio is still mapped after deletion. The migration process may encounter a race condition involving fallocating holes. The removeinodesinglefolio function will unmap the folio if it is still...

CVE-2026-31575

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: fix hugetlb fault mutex hash calculation In mfillatomichugetlb, linearpageindex is used to calculate the page index for hugetlbfaultmutexhash. However, linearpageindex returns the index in PAGESIZE units, while...

CVE-2026-31575

The CVE-2026-31575 issue affects the Linux kernel mm/userfaultfd code, where hugetlb fault mutex hashing used linear_page_index() (PAGE_SIZE units) instead of huge-page units, causing different mutexes to be used for addresses within the same huge page. The mismatch can allow races between faulti...

CVE-2026-31575

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: fix hugetlb fault mutex hash calculation In mfillatomichugetlb, linearpageindex is used to calculate the page index for hugetlbfaultmutexhash. However, linearpageindex returns the index in PAGESIZE units, while...

CVE-2026-31575

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: fix hugetlb fault mutex hash calculation In mfillatomichugetlb, linearpageindex is used to calculate the page index for hugetlbfaultmutexhash. However, linearpageindex returns the index in PAGESIZE units, while...

PT-2026-34927

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the mfill atomic hugetlb function, the linear page index function is used to calculate the page index for hugetlb fault mutex hash. Because linear page index returns the index in PAGE...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013747)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013747 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011103)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011103 advisory. In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlbhandleuserfault The vmalock and hugetlbfaultmutex are dropped befo...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlbhandleuserfault The vmalock and hugetlbfaultmutex are removed before handling userfault, and reacquired again after handleuserfault. However, reacquiring the vmalock could lead to a...

SUSE CVE-2026-23097

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

SUSE CVE-2026-23100

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlbpmdshared Patch series "mm/hugetlb: fixes for PMD table sharing incl. using mmugather", v3. One functional fix, one performance regression fix, and two related comment fixes. I cleaned up my prototype I...

CVE-2026-23100 mm/hugetlb: fix hugetlb_pmd_shared()

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlbpmdshared Patch series "mm/hugetlb: fixes for PMD table sharing incl. using mmugather", v3. One functional fix, one performance regression fix, and two related comment fixes. I cleaned up my prototype I...

CVE-2026-23100

The CVE-2026-23100 entry concerns the Linux kernel mm/hugetlb code and a fix for hugetlb_pmd_shared(). The vulnerability stemmed from how shared PMD tables were detected; the patch set switches to using an independent shared count and the ptdesc_pmd_is_shared() check, so that shared PMD tables ar...

EUVD-2026-5442

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlbpmdshared Patch series "mm/hugetlb: fixes for PMD table sharing incl. using mmugather", v3. One functional fix, one performance regression fix, and two related comment fixes. I cleaned up my prototype I...