Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the failure of the mshvmapusermemory function to unregister the MMU notifier, allowing for reuse...

PT-2026-30130

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Move event pointer setup earlier in x86 pmu enable A production AMD EPYC system crashed with a NULL pointer dereference in the PMU NMI handler: BUG: kernel NULL pointer dereference, address: 0000000000000198 RIP: x86 pe...

USN-8143-2 linux-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - GPU drivers; - BTRFS file system; - GFS2 file system; - UDF file system; - NFC subsystem; -...

KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

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PT-2026-33152

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 147.0.7727.101 Description An out of bounds write in the GPU allows a remote attacker who has compromised the GPU process to potentially perform a sandbox escape via a crafted HTML page. An out of bounds write...

USN-8143-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - GPU drivers; - BTRFS file system; - GFS2 file system; - UDF file system; - NFC subsystem; -...

CVE-2026-23402

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

UBUNTU-CVE-2026-23401

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23402

CVE-2026-23402 affects the Linux kernel KVM MMU on x86. The issue arises when overwriting a shadow-present SPTE with a different PFN, where KVM’s sanity check could allow harmful state changes in direct MMUs (i.e., MMUs without shadowed gPTEs). The problem is tracked in KVM’s mmu_set_spte path, a...

CVE-2026-23402

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

EUVD-2026-17779

Heap buffer overflow in GPU in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Chromium security severity: High...

CVE-2026-5272

Heap buffer overflow in GPU in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Chromium security severity: High...

CVE-2026-5272

Heap buffer overflow in GPU in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Chromium security severity: High...

CVE-2026-5272

Heap buffer overflow in GPU in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Chromium security severity: High...

CVE-2026-5272

Heap buffer overflow in GPU in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Chromium security severity: High...

PT-2026-29485

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

Linux Distros Unpatched Vulnerability : CVE-2026-5272

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Heap buffer overflow in GPU in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Chromium...

ALSA-2026:6391 Moderate: mysql:8.4 security update

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon mysqld and many client programs and libraries. Security Fixes: mysql: Optimizer unspecified vulnerability CPU Jan 2026 CVE-2026-21941 mysql: Optimizer unspecified vulnerability CPU Jan 2026...