Linux HyperV Kernel Driver Heap Buffer Overflow DoS

The vulnerability of the mshvhandlegpaintercept function in the drivers/hv/mshvrootmain.c file of the Microsoft HyperV Linux operating system kernel driver is related to the improper disabling or release of resources. Exploiting this vulnerability could allow a remote attacker to cause service...

Linux HyperV Guest Mode Driver Use-After-Free

The vulnerability of the mshvpartitioncreateregion function in the drivers/hv/mshvrootmain.c file of the Microsoft HyperV kernel driver for Linux operating systems is related to insufficient validation of input data. Exploiting this vulnerability could allow an attacker to compromise the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm: Check that output polling is initialized before disabling it. In drmkmshelperpolldisable, check that output polling is initialized before disabling polling. If not, flag this as a warning. Additionally, in...

Linux hyperv.netvsc_drv.c DoS

The vulnerability of the hyperv.netvscdrv.c component in the Linux operating system is related to errors during resource release. Exploiting this vulnerability can allow an attacker to cause a service failure...

RLSA-2026:50979 Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 Bug Fixes and Enhancements: Kernel...

kernel-rt security, bug fix, and enhancement update

An update is available for kernel-rt. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel-rt packages provide the Real Time Linux Kernel, which enables...

RXSA-2026:50978 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 Bug Fixes and Enhancements: Kernel crash in bpfforeacharrayelem due to missing backport of...

kernel security, bug fix, and enhancement update

An update is available for kernel. This update affects Rocky Linux SIG Cloud 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

ALSA-2026:50978 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 Bug Fixes and Enhancements: Kernel crash in bpfforeacharrayelem due to missing backport of...

RHEL 8 : kernel-rt (RHSA-2026:50979)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:50979 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements...

RHEL 8 : kernel (RHSA-2026:50978)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:50978 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xen: AMD Zen 2 Processors: Privilege...

ALSA-2026:50979 Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 Bug Fixes and Enhancements: Kernel...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 Bug Fixes and Enhancements: Kernel crash in bpfforeacharrayelem due to missing backport of...

CVE-2026-64527

A flaw was found in the drm/hyperv component of the Linux kernel. The hypervreceivesub function, responsible for processing VMBus packets, does not adequately validate the size of incoming data. This oversight allows a malicious or compromised host to send specially crafted packets, potentially...

CVE-2026-64524

A flaw was found in the Linux kernel's drm/hyperv component. A malicious Hyper-V guest could exploit an out-of-bounds memory access vulnerability by sending a crafted resolution response. This could potentially lead to information disclosure or a denial of service. Additionally, an issue with the...

CVE-2026-64527

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate VMBus packet size in receive callback hypervreceivesub reads msg-vidhdr.type and dispatches into one of four message-type branches without knowing how many bytes the host wrote into hv-recvbuf. The completion...

CVE-2026-64524

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolutioncount and fix WIN8 fallback A SYNTHVIDRESOLUTIONRESPONSE with resolutioncount 64 walks past the supportedresolutionSYNTHVIDMAXRESOLUTIONCOUNT array in the parse loop. Bound resolutioncount against t...

UBUNTU-CVE-2026-64527

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate VMBus packet size in receive callback hypervreceivesub reads msg-vidhdr.type and dispatches into one of four message-type branches without knowing how many bytes the host wrote into hv-recvbuf. The completion...

UBUNTU-CVE-2026-64524

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolutioncount and fix WIN8 fallback A SYNTHVIDRESOLUTIONRESPONSE with resolutioncount 64 walks past the supportedresolutionSYNTHVIDMAXRESOLUTIONCOUNT array in the parse loop. Bound resolutioncount against t...