Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: book3s64/radix: Align the start address of the vmemmap section with PAGESIZE. The vmemmap altmap is a device-provided region used to provide backing storage for struct pages. For each namespace, the altmap should belong to the sa...

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

In the Linux kernel, the following vulnerabilities have been resolved: RISCV: Fix for the “Sparse-Memory/vmemmap out-of-bounds” issue. The offset of vmemmap was adjusted so that the first page of vmemmap is mapped to the first page of physical memory. This ensures that the bounds of vmemmap are...

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

In the Linux kernel, the following vulnerabilities have been resolved: x86/mm/64: Defined ARCHPAGETABLESYNCMASK and archsynckernelmappings. These definitions ensure that page tables are properly synchronized when calling pdpopulatekernel. For 5-level paging, synchronization is performed via...

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

In the Linux kernel, the following vulnerability has been resolved: mm: Move page table sync declarations to linux/pgtable.h During our internal testing, we began observing intermittent boot failures when the machine uses 4-level paging and has a large amount of persistent memory: BUG: Unable to...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm/vmemmap/devdax: fixed a kernel crash that occurred when probing devdax devices. The commit 4917f55b4ef9 “mm/sparse-vmemmap: improved memory savings for compound devmaps” added support for using optimized vmmemap for devdax...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: bootmem: The vmemmap pages are removed from kmemleak when freeing the page. Previously, these pages were marked as part of kmemleak when allocated from a memblock. If they are not removed during freeing, when the page is reuse...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerability has been resolved: rvcm: mm: Fixed the out-of-bound issue with vmemmap addresses In the sparse vmemmap model, the virtual address of vmemmap is calculated as: struct page VMEMMAPSTART - physrambase PAGESHIFT. The virtual address of struct page can ...

SUSE CVE-2026-43348

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn, intending to use the...

EUVD-2026-28632

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn, intending to use the...

CVE-2026-43348

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn, intending to use the...

UBUNTU-CVE-2026-43348

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn, intending to use the...

CVE-2026-43348

The CVE-2026-43348 issue affects the Linux kernel’s mshv_vtl path: when registering VTL0 memory via MSHV_ADD_VTL0_MEMORY, the calculation of pgmap->vmemmap_shift can exceed MAX_FOLIO_ORDER, causing a WARN and -EINVAL during memremap_pages(). The root cause is failing to clamp the computed shif...

CVE-2026-43348

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn, intending to use the...

CVE-2026-43348 mshv_vtl: Fix vmemmap_shift exceeding MAX_FOLIO_ORDER

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn, intending to use the...

PT-2026-38999

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the mshv vtl component when registering VTL0 memory via 'MSHV ADD VTL0 MEMORY'. The kernel calculates pgmap-vmemmap shift based on the trailing zeros of start pfn and...

Linux Distros Unpatched Vulnerability : CVE-2026-43348

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel computes pgmap-vmemmapshift as the number of...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the calculation of vmemmapshift in mshvvtl. This calculation does not limit the value to...

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

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix deadlock when hugetlboptimizevmemmap is enabled When I did hard offline test with hugetlb pages, below deadlock occurs: ====================================================== WARNING: possible circular...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013684)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013684 advisory. In the Linux kernel, the following vulnerability has been resolved: bootmem: remove the vmemmap pages from kmemleak in putpagebootmem The vmemmap pages is marked by...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011027)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011027 advisory. In the Linux kernel, the following vulnerability has been resolved: bootmem: remove the vmemmap pages from kmemleak in putpagebootmem The vmemmap pages is marked by...