kernel: x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type

A vulnerability in the Linux kernel affected the x86/mm code, specifically in the pfntokaddr macro. The issue arises when the macro does not correctly handle input as a 64-bit type, causing crashes on 64-bit platforms, especially for SEV-SNP guests, when processing addresses above the 1TB range...

kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity

A flaw was found in the way AMD IOMMU handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity...

SUSE CVE-2024-44943

In the Linux kernel, the following vulnerability has been resolved: mm: gup: stop abusing trygrabfolio A kernel warning was reported when pinning folio in CMA memory when launching SEV virtual machine. The splat looks like: 464.325306 WARNING: CPU: 13 PID: 6734 at mm/gup.c:1313...

DEBIAN-CVE-2024-44943

In the Linux kernel, the following vulnerability has been resolved: mm: gup: stop abusing trygrabfolio A kernel warning was reported when pinning folio in CMA memory when launching SEV virtual machine. The splat looks like: 464.325306 WARNING: CPU: 13 PID: 6734 at mm/gup.c:1313...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: iouring: drop any code related to SCMRIGHTS CVE-2023-52656 In the Linux kernel, the following vulnerability has been resolved: md/raid10: prevent soft lockup while flush writes CVE-2023-53151 Integer Overflow or...

DEBIAN-CVE-2023-20584

IOMMU improperly handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity...

AMD Secure Processor和AMD Secure Encrypted Virtualization 安全漏洞

AMD Secure Encrypted Virtualization and AMD Secure Processor ASP are both products of Ultraviolet Semiconductor AMD, Inc.AMD Secure Encrypted Virtualization is a software application. Hardware-accelerated memory encryption to protect data in use.AMD Secure Processor is a standalone ARM Coretex-A5...

hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

SUSE CVE-2021-47389

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: fix missing sevdecommission in sevreceivestart DECOMMISSION the current SEV context if binding an ASID fails after RECEIVESTART. Per AMD's SEV API, RECEIVESTART generates a new guest context and thus needs to be paired...

SUSE CVE-2021-47228

In the Linux kernel, the following vulnerability has been resolved: x86/ioremap: Map EFI-reserved memory as encrypted for SEV Some drivers require memory that is marked as EFI boot services data. In order for this memory to not be re-used by the kernel after ExitBootServices, efimemreserve is use...

hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

kernel: x86/sev: Make enc_dec_hypercall() accept a size instead of npages

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Make encdechypercall accept a size instead of npages encdechypercall accepted a page count instead of a size, which forced its callers to round up. As a result, non-page aligned vaddrs caused pages to be spuriously marke...

UBUNTU-CVE-2024-25742

In the Linux kernel before 6.9, an untrusted hypervisor can inject virtual interrupt 29 VC at any point in time and can trigger its handler. This affects AMD SEV-SNP and AMD SEV-ES...

DEBIAN-CVE-2024-25743

In the Linux kernel through 6.9, an untrusted hypervisor can inject virtual interrupts 0 and 14 at any point in time and can trigger the SIGFPE signal handler in userspace applications. This affects AMD SEV-SNP and AMD SEV-ES...

hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

kernel: KVM: SVM: Get source vCPUs from source VM for SEV-ES intrahost migration

A flaw was found in the Linux kernel's KVM SVM implementation for AMD SEV-ES. During intrahost VM migration, KVM incorrectly retrieves source vCPUs from the destination VM instead of the source VM. This causes the VMSA Virtual Machine Save Area pointer to remain NULL, leading to a host kernel cra...

kernel: SEV-ES local priv escalation

A buffer overflow and null pointer dereference flaw was found in the Linux kernel's Secure Encrypted Virtualization SEV implementation for AMD functionality. This issue occurs when a user in SEV guest VM accesses MMIO registers, which could allow a local user to crash the system or escalate their...

UBUNTU-CVE-2023-31346

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests...

AMD SEV-SNP Security Vulnerability

AMD SEV-SNP is a secure encrypted virtualization firmware from UltraMicroelectronics AMD. A single key is used to encrypt system memory. AMD SEV-SNP has a security vulnerability that stems from a code error...

kernel: SEV-ES local priv escalation

A buffer overflow and null pointer dereference flaw was found in the Linux kernel's Secure Encrypted Virtualization SEV implementation for AMD functionality. This issue occurs when a user in SEV guest VM accesses MMIO registers, which could allow a local user to crash the system or escalate their...