Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from a memory leak in the EFCH MMIO resource in thinkpadacpi...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: x86/tdx: Fixed the “in-kernel MMIO” check TDX only supports MMIO operations initiated by the kernel. The handlemmio function checks whether the VE exception occurred in the kernel and rejects the operation if it did. However,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fixed a data leak in the mmioread function. The mmioread function calls a TDVMCALL to retrieve MMIO data for a given address from the VMM. Sean noticed that mmioread inadvertently exposes the value of an initialized...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Do not allow mapping the MMIO HDP page with large pages. In that case, we do not receive the correct offset. The GPU has an unused 4K area of the register BAR space, into which we can remap registers. We remap the HDP...

UBUNTU-CVE-2024-56689

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio' If platformgetresourcebyname fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res-start will cause a NULL pointer...

SUSE CVE-2024-53196

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't retire aborted MMIO instruction Returning an abort to the guest for an unsupported MMIO access is a documented feature of the KVM UAPI. Nevertheless, it's clear that this plumbing has seen limited testing, since...

AZL-68306 CVE-2024-53196 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't retire aborted MMIO instruction Returning an abort to the guest for an unsupported MMIO access is a documented feature of the KVM UAPI. Nevertheless, it's clear that this plumbing has seen limited testing, since...

UBUNTU-CVE-2024-53196

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't retire aborted MMIO instruction Returning an abort to the guest for an unsupported MMIO access is a documented feature of the KVM UAPI. Nevertheless, it's clear that this plumbing has seen limited testing, since...

SUSE CVE-2024-45818

The hypervisor contains code to accelerate VGA memory accesses for HVM guests, when the virtual VGA is in "standard" mode. Locking involved there has an unusual discipline, leaving a lock acquired past the return from the function that acquired it. This behavior results in a problem when emulatin...

x86/tdx: Fix "in-kernel MMIO" check

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SUSE CVE-2024-50114

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Unregister redistributor for failed vCPU creation Alex reports that syzkaller has managed to trigger a use-after-free when tearing down a VM: BUG: KASAN: slab-use-after-free in kvmputkvm+0x300/0xe68...

UBUNTU-CVE-2024-50114

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Unregister redistributor for failed vCPU creation Alex reports that syzkaller has managed to trigger a use-after-free when tearing down a VM: BUG: KASAN: slab-use-after-free in kvmputkvm+0x300/0xe68...

PT-2024-35643

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74 Description The issue is related to the KVM UAPI in the Linux kernel, where returning an abort to the guest for an unsupported MMIO access can cause a warning. This warning occurs when KVM is advancing PC...

SUSE CVE-2024-47727

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix "in-kernel MMIO" check TDX only supports kernel-initiated MMIO operations. The handlemmio function checks if the VE exception occurred in the kernel and rejects the operation if it did not. However, userspace can...

DEBIAN-CVE-2024-47727

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix "in-kernel MMIO" check TDX only supports kernel-initiated MMIO operations. The handlemmio function checks if the VE exception occurred in the kernel and rejects the operation if it did not. However, userspace can...

AZL-50879 CVE-2024-47727 affecting package kernel for versions less than 6.6.56.1-5

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix "in-kernel MMIO" check TDX only supports kernel-initiated MMIO operations. The handlemmio function checks if the VE exception occurred in the kernel and rejects the operation if it did not. However, userspace can...

Linux kernel 代码问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from improper in-kernel MMIO checking in the x86/tdx subsystem, which could lead to a security breach...

drm/amdkfd: don't allow mapping the MMIO HDP page with large pages

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Fixed in Apache Tomcat JK Connector 1.2.50

Moderate: Information disclosure / Denial of service CVE-2024-46544 Incorrect default permissions for the memory mapped file configured by the JkShmFile directive on Unix like systems allows local users to view and/or modify the contents of the shared memory containing modjk configuration and...

AZL-53295 CVE-2024-46794 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix data leak in mmioread The mmioread function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmioread unintentionally exposes the value of an initialized variable val on the stack...