MessagePack::Buffer#clear Use-After-Free that Enables Cross-Buffer Disclosure

Summary MessagePack::Bufferclear shifts out every chunk and returns its 4 KiB rmem page to the shared pool, but does not reset the buffer's rmem cursor rmemlast, rmemend, rmemowner. The next write sees "unused rmem space" left over from the freed page and hands back a slice of memory that has...

CVE-2026-62434

A flaw was found in Xen. When a guest operating system is started with Populated on Demand PoD enabled, it can attempt to reclaim memory pages that are not regular guest RAM. This action can lead to the corruption of Xen's memory management state, potentially causing system instability or denial ...

EUVD-2026-49787

A guest started with Populated on Demand enabled PoD can attempt to reclaim pages which aren't regular guest RAM. This can cause corruption of memory management state in Xen...

CVE-2026-64104 virt: sev-guest: Explicitly leak pages in unknown state

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When setmemoryencrypted,decrypted fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view o...

CVE-2026-64104 virt: sev-guest: Explicitly leak pages in unknown state

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When setmemoryencrypted,decrypted fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view o...

EUVD-2026-45789

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When setmemoryencrypted,decrypted fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view o...

CVE-2026-64104

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When setmemoryencrypted,decrypted fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view o...

EUVD-2026-40976

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: call pagetable dtor when freeing hot-removed page tables Since 5e8eb9aeeda3 "arm64: mm: always call PTE/PMD ctor in createpgdmapping" page-table allocation on ARM64 always calls pagetablepte,pmd,pud,p4dctor. This sets...

EUVD-2026-36630

Software installed and run as a non-privileged user may conduct GPU system calls to write to arbitrary freed physical pages. Physical memory allocated and freed, without the deferred free mechanism can lead to those resources being used for read/write by the GPU after the kernel module has freed...

CVE-2025-29936

Improper input validation within the AMD Platform Management Framework PMF could allow an attacker to unmap arbitrary memory pages potentially impacting integrity and availability, or allowing privilege escalation resulting in loss of confidentiality...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: The issue of using NULL for folio handling in movepageshugepmd has been fixed. movepageshugepmd handles UFFDIOMOVE operations for both normal THPs and huge zero pages. For the huge zero page, srcfolio is explicitly...

CVE-2025-29936

Improper input validation within the AMD Platform Management Framework PMF could allow an attacker to unmap arbitrary memory pages potentially impacting integrity and availability, or allowing privilege escalation resulting in loss of confidentiality...

CVE-2025-29936

CVE-2025-29936 involves the AMD Platform Management Framework (PMF) Driver. Description: improper input validation could allow a local attacker to un-map arbitrary memory pages, potentially impacting integrity and availability, or facilitate privilege escalation with loss of confidentiality. The ...

CVE-2025-29936

Improper input validation within the AMD Platform Management Framework PMF could allow an attacker to unmap arbitrary memory pages potentially impacting integrity and availability, or allowing privilege escalation resulting in loss of confidentiality...

AMD多款产品 输入验证错误漏洞

The AMD Ryzen is a central processing unit CPU developed by American semiconductor company AMD. Several AMD products have a vulnerability related to input validation. This vulnerability arises due to improper input validation, which may allow attackers to unmapped any memory page, thereby affecti...

CVE-2026-43389

A flaw was found in the memfdluo subsystem of the Linux kernel. When using memfd preservation with Live Update Operations LUO, the kernel may incorrectly mark a memory page folio as clean even if it contains user data. This can lead to data loss, as the kernel might reclaim these 'dirty' folios...

EUVD-2026-26664

Software installed and run as a non-privileged user may conduct improper GPU system calls to force GPU to write to arbitrary physical memory pages. Under certain circumstances this exploit could be used to corrupt data pages not allocated by the GPU driver but memory pages in use by the kernel an...

CVE-2026-22167

CVE-2026-22167 concerns a GPU DDK vulnerability where cache-resident PM buffers can be written by other GPU requestors. The issue allows software running as a non-privileged user to issue improper GPU system calls, forcing the GPU to write to arbitrary physical memory pages. Under certain conditi...

PT-2026-34954

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ALSA ctxfi component where the ct vm map function always uses Page Table Entries PTEs in vm-ptp0.area regardless of the CT PTP NUM value. On AMD64 systems, a singl...

Contrast BadAML injection allows arbitrary code execution

BadAML BadAML is an AML injection attack that exploits the ACPI interface and allows arbitrary code execution in a confidential VM. The attack was first published in 2024: - - Impact An attacker with control over the host which is assumed in the attacker model of Contrast can execute malicious AM...