CVE-2026-80765

CVE-2026-80765 affects the Linux kernel 's Hyper-V synthetic HID driver. The function mousevsc_on_receive_device_info() trusts the bLength and wDescriptorLength fields in SYNTH_HID_INITIAL_DEVICE_INFO messages without verifying that the received VMBus packet actually contains both the HID descrip...

Linux Distros Unpatched Vulnerability : CVE-2026-80765

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - HID: hyperv: validate initial device info bounds The Hyper-V synthetic HID host supplies SYNTHHIDINITIALDEVICEINFO messages that contain a HID descriptor follow...

The vulnerability of the mshv_vtl_ioctl_add_vtl0_mem() function in the drivers/hv/mshv_vtl_main.c driver for the Microsoft HyperV guest mode operating system on Linux allows a attacker to compromise the accessibility of protected information.

The vulnerability of the mshvvtlioctladdvtl0mem function in the drivers/hv/mshvvtlmain.c driver of the Microsoft HyperV guest mode operating system on Linux is related to incorrect validation of input data. Exploiting this vulnerability could allow an attacker to compromise the accessibility of...

PT-2026-85606

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.5-1.1 Description The Hyper-V synthetic HID host provides SYNTH HID INITIAL DEVICE INFO messages containing a HID descriptor and report descriptor bytes. The mousevsc on receive device info function fails to...

CVE-2026-80676

A flaw was found in the Linux kernel's Hyper-V hv VMBus driver. When a driver is being initialized, a specific callback function attempts to access a memory region driveroverride without proper synchronization. This oversight can lead to a Use-After-Free UAF vulnerability, where a local attacker...

AZL-98150 CVE-2026-80676 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

CVE-2026-80676

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

UBUNTU-CVE-2026-80676

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

CVE-2026-80676

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

CVE-2026-80676

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

CVE-2026-80676

CVE-2026-80676 affects the Linux kernel Hyper-V vmbus driver. When a driver is probed via __driver_attach(), the bus match() callback is invoked without the device lock held, allowing an unlocked access to the driver_override field that can lead to a Use-After-Free (UAF) condition. The fix migrat...

CVE-2026-80676 Drivers: hv: vmbus: use generic driver_override infrastructure

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

EUVD-2026-67552

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driveroverride infrastructure When a driver is probed through driverattach, the bus' match callback is called without the device lock held, thus accessing the driveroverride field without a lock,...

ROS-20260826-73-0003

The vulnerability of the vmbusacpiadd function in the drivers/hv/vmbusdrv.c module of the Microsoft HyperV Linux operating system is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the mshv_map_user_memory() function in the drivers/hv/mshv_root_main.c file of the Microsoft HyperV kernel for Linux operating systems allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the mshvmapusermemory function in the drivers/hv/mshvrootmain.c file of the Microsoft HyperV kernel for Linux operating systems is related to the reutilization of previously released memory. Exploiting this vulnerability could allow a remote attacker to compromise the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Disabling IBT when the hypercall page lacks the ENDBR instruction. On hardware that supports Indirect Branch Tracking IBT, Hyper-V VMs with ConfigVersion 9.3 or later support IBT in the guest. However, current version...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Drivers: hv: vmbus: Disabled the option to deactivate sysctlrecordpanicmsg by default in isolated guests. hvpanicpage might contain information sensitive to guests; do not dump this information to Hyper-V by default in isolate...

PT-2026-76674

Just a quick note that I saw a new SABB Active Backup spk posted this morning. Version is 3.2.1-25059 dated 12-Aug-2026. This is one of my most important packages so I'll be checking it out. Changelog Fixed a security vulnerability CVE-2026-15716 Fixed an issue where backing up or restoring Hyper...

UBUNTU-CVE-2026-72343

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix HV VHCA stats zero-sized buffer allocation mlx5ehvvhcastatscreate is called from mlx5enicenable, before mlx5eopen. At that point priv-statsnch is still zero, because it is only ever incremented in...

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A proof of concept exploit for an out-of-bounds memory access vulnerability in the QEMU Hyper-V synthetic debugger device. The handlerecvmsg function fails to verify the length returned by cpuphysicalmemorymap before copying a received debug datagram into the mapped region. A guest able to invoke...