CVE-2026-72212

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix incorrect altmap passing in error path In createaltmapsandmemoryblocks, when archaddmemory succeeds with memmaponmemory enabled, the vmemmap pages are allocated from params.altmap. If creatememoryblockdevice...

UBUNTU-CVE-2026-72212

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix incorrect altmap passing in error path In createaltmapsandmemoryblocks, when archaddmemory succeeds with memmaponmemory enabled, the vmemmap pages are allocated from params.altmap. If creatememoryblockdevice...

CVE-2026-72212

CVE-2026-72212 : In the Linux kernel, a bug in memory hotplug could lead to memory corruption. When arch_add_memory() succeeds with memmap_on_memory, vmemmap pages are allocated from params.altmap; if create_memory_block_devices() later fails, arch_remove_memory() was called with a NULL altmap in...

CVE-2026-72212 mm/memory_hotplug: fix incorrect altmap passing in error path

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix incorrect altmap passing in error path In createaltmapsandmemoryblocks, when archaddmemory succeeds with memmaponmemory enabled, the vmemmap pages are allocated from params.altmap. If creatememoryblockdevice...

EUVD-2026-58930

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: fix uninitialized struct pages for ZONEDEVICE If DAX memory is hotplugged into an unoccupied subsection of an early section, sectionactivate reuses the unoptimized boot memmap. However, compoundnrpages still assumes th...

PT-2026-72400

In the Linux kernel, the following vulnerability has been resolved: mm/memory hotplug: fix incorrect altmap passing in error path In create altmaps and memory blocks, when arch add memory succeeds with memmap on memory enabled, the vmemmap pages are allocated from params.altmap. If create memory...

CVE-2026-64302

A flaw was found in the Linux kernel. A local user could exploit an issue in the pagetablefree function, which incorrectly handles vmemmap pages. This improper memory management leads to a memory leak, where only a portion of the allocated memory is freed. Consequently, this can result in a Denia...

SUSE CVE-2026-64302

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

CVE-2026-64302

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

UBUNTU-CVE-2026-64302

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

CVE-2026-64302

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

CVE-2026-64302 x86/mm: Fix freeing of PMD-sized vmemmap pages

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

CVE-2026-64302

Summary: CVE-2026-64302 affects the Linux kernel in the x86 memory management code. The root issue is that pagetable_free() was used to free PMD-sized vmemmap pages, but vmemmap pages are not page tables, causing only the first page to be freed and leaking the rest. This was triggered by a commit...

CVE-2026-64302

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

CVE-2026-64302 x86/mm: Fix freeing of PMD-sized vmemmap pages

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 "x86/mm: use pagetablefree", switched from freeing non-boot page tables through freepages to pagetablefree. However, the function is also called to free vmemmap...

PT-2026-64523

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the x86 memory management where PMD-sized vmemmap pages are not freed correctly. The pagetable free function is used to free vmemmap pages, but since these are not...

Linux Distros Unpatched Vulnerability : CVE-2026-64302

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/mm: Fix freeing of PMD-sized vmemmap pages Commit bf9e4e30f353 x86/mm: use pagetablefree, switched from freeing non-boot page tables through freepages to...

Astra Linux – Vulnerability in 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. These pages were previously marked by kmemleak when allocated from a memblock. If they remain in kmemleak, they may cause errors when reusing the page...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fixed the issue where vmemmapshift exceeded MAXFOLIOORDER. When registering VTL0 memory via MSHVADDVTL0MEMORY, the kernel calculates pgmap-vmemmapshift as the number of trailing zeros in the OR of startpfn and lastpfn. T...

Astra Linux – Vulnerability in 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...