CVE-2026-64295

A flaw was found in the Linux kernel's memory management mm component, specifically within the pageext iteration application programming interface API. When memory is dynamically added to the system a process known as 'hotplugging', the API does not properly validate memory page frame numbers PFN...

Siemens SIMATIC S7-1500 CPU 1518 MFP Race Condition within a Thread (CVE-2025-38681)

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: take the memory hotplug lock inside ptdumpwalkpgd Memory hot remove unmaps and tears down various kernel page table regions as required. The ptdump code can race with concurrent modifications of the kernel page tables...

CVE-2026-64295

In the Linux kernel, the following vulnerability has been resolved: mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memory in...

UBUNTU-CVE-2026-64295

In the Linux kernel, the following vulnerability has been resolved: mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memory in...

EUVD-2026-49007

In the Linux kernel, the following vulnerability has been resolved: mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memory in...

CVE-2026-64295

The vulnerability CVE-2026-64295 affects the Linux kernel’s page_ext iteration API. The issue arises when memory hotplug advances the iterator past the last valid section, causing page_ext_lookup to dereference a NULL PFN. The root cause is that for_each_page_ext() can increment the iterator boun...

CVE-2026-64295 mm: page_ext: add count limit to page_ext_iter_next to prevent invalid PFN access

In the Linux kernel, the following vulnerability has been resolved: mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memory in...

Linux Distros Unpatched Vulnerability : CVE-2026-64295

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid...

PT-2026-64516

In the Linux kernel, the following vulnerability has been resolved: mm: page ext: add count limit to page ext iter next to prevent invalid PFN access The page ext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memo...

Linux Distros Unpatched Vulnerability : CVE-2026-64180

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/memoryhotplug: fix memory block reference leak on remove Patch series mm: Fix memory block leaks and locking, v2. This series fixes two memory block device...

CVE-2026-64180

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memoryblock...

EUVD-2026-45865

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memoryblock...

CVE-2026-64180

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memoryblock...

CVE-2026-64180

The CVE-2026-64180 entry documents a Linux kernel issue in the memory hotplug path (mm/memory_hotplug). The root cause is that remove_memory_blocks_and_altmaps() calls find_memory_block() to obtain a memory block device reference, but the acquired reference is not dropped, leading to a leaked dev...

CVE-2026-64180 mm/memory_hotplug: fix memory block reference leak on remove

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memoryblock...

CVE-2026-64180

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memoryblock...

CVE-2026-64180 mm/memory_hotplug: fix memory block reference leak on remove

In the Linux kernel, the following vulnerability has been resolved: mm/memoryhotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memoryblock...

PT-2026-61497

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the memory hotplug component where the remove memory blocks and altmaps function fails to release a reference to the memory block device. This occurs because find memo...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Added an addpages override for PPC. With the commit ffa0b64e3be5 “powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit”, the kernel now validates the addr against the highmemory value. This results in the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: The memory hotplug lock is now handled within ptdumpwalkpgd. Memory hot removal operations involve unmapping memory and deallocating various kernel page table regions as needed. The ptdump code may race with concurrent...