[SECURITY] Fedora 43 Update: xen-4.20.3-2.fc43

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

ALPINE-CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786

The CVE-2026-31786 issue affects the Linux kernel in drivers/xen/sys-hypervisor.c, where HYPERVISOR_xen_version(XENVER_build_id) returned a build_id that is not NUL-terminated, causing a buffer overflow via sprintf in buildid_show. The root cause is that the build_id was not treated as a proper s...

CVE-2026-31786 Buffer overflow in drivers/xen/sys-hypervisor.c

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a buffer overflow in the hypervisor driver of the xen system. This vulnerability could lead to...

Linux kernel out of bounds read via Xen-related sysfs file

ISSUE DESCRIPTION The Linux sysfs file /sys/hypervisor/properties/buildid does not contain printable information, but a binary value of typically 16 or 20 bytes, which is not terminated by a zero byte. The kernel driver making this information available is using the sprintf function for writing t...

denuOwO-hypervisor-vulnerabilities

DenuOwO SVM/VMX Hypervisor — 6 Vulnerabilities PoC + Analysis...

USN-8180-5: Linux kernel (IBM) 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: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8180-4 linux-azure-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: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8180-3: Linux kernel 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: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

AZL-56723 CVE-2024-12797 for package cloud-hypervisor-cvm is not applicable

This CVE either no longer is or was never applicable...

CVE-2026-29649

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013287)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013287 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Make sure GHCB is mapped before updating Access to the GHCB is mainly in the VMGEXIT pa...

EUVD-2026-23958

In OpenXiangShan NEMU prior to 55295c4, when running with RVH Hypervisor extension enabled, a VS-mode guest write to the supervisor interrupt-enable CSR sie may be handled incorrectly and can influence machine-level interrupt enable state mie. This breaks privilege/virtualization isolation and ca...

EUVD-2026-23944

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...

CVE-2026-29646

In OpenXiangShan NEMU prior to 55295c4, when running with RVH Hypervisor extension enabled, a VS-mode guest write to the supervisor interrupt-enable CSR sie may be handled incorrectly and can influence machine-level interrupt enable state mie. This breaks privilege/virtualization isolation and ca...

CVE-2026-29649

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...