CVE-2021-47082 tun: avoid double free in tun_free_netdev

In the Linux kernel, the following vulnerability has been resolved: tun: avoid double free in tunfreenetdev Avoid double free in tunfreenetdev by moving the dev-tstats and tun-security allocs to a new ndoinit routine tunnetinit that will be called by registernetdevice. ndoinit is paired with the...

CVE-2021-47082

In the Linux kernel, the following vulnerability has been resolved: tun: avoid double free in tunfreenetdev Avoid double free in tunfreenetdev by moving the dev-tstats and tun-security allocs to a new ndoinit routine tunnetinit that will be called by registernetdevice. ndoinit is paired with the...

openSUSE: Security Advisory for the Linux Kernel (SUSE-SU-2023:0147-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47061

A flaw was found in the Linux kernel’s Kernel-based virtual machine KVM subsystem. A bug in the code destroys devices attached to I/O buses before the bus can be nullified. This issue causes use-after-free scenarios as readers may still reference the devices on their bus version...

CVE-2021-47060

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvmiobusunregisterdev fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus,...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47060

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvmiobusunregisterdev fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus,...

CVE-2021-47060

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvmiobusunregisterdev fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus,...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47060

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvmiobusunregisterdev fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus,...

CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47062

The CVE-2021-47062 vulnerability affects the Linux kernel KVM SVM path. The issue occurs when iterating vCPUs for SEV-encrypted VMSAs using created_vcpus, which does not guarantee a vCPU’s existence and can trigger a NULL pointer dereference. The documented fix switches to iterating with online_v...

CVE-2021-47062 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47062 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47061

CVE-2021-47061 : Concrete details in connected advisories show a Linux kernel/KVM issue where destroying an I/O bus device must occur after unregister, and after SRCU-synchronization. The root cause is a use-after-free risk if devices are destroyed before the bus is nullified, because readers exp...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...