333 matches found
CLSA-2023-1698305104 Fix of 7 CVEs
Ubuntu: 4.15.0-220.231 CVE-2023-0597 // CVE-url: https://ubuntu.com/security/CVE-2023-0597 - x86/kasan: Map shadow for percpu pages on demand - x86/mm: Recompute physical address for every page of per-CPU CEA mapping - x86/mm: Populate KASAN shadow for entire per-CPU range of CPU entry area -...
Astra Linux – vulnerability in linux-5.10, linux-5.15, linux-6.1
In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvifflushhash During the listforeachentryrcu iteration call of xenvifflushhash, kfreercu does not exist inside the rcu read critical section; thus, if kfreercu is called when the rcu grace period...
ROS-20261012-73-0265
The vulnerability of the xen-netback component in the Linux operating system’s kernel is related to incorrect checking of the amount of data at the input. Exploiting this vulnerability can allow an attacker to cause a service failure...
Astra Linux – Vulnerability in Linux 5.10, Linux
In the Linux kernel, the following vulnerability has been resolved: xenvifrxnextskb: Avoid entering this function with an empty rx queue. xenvifrxnextskb expects that the rx queue is not empty. However, if the loop in xenvifrxaction performs multiple iterations, the availability of another skb in...
Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053433)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053433 advisory. In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvifflushhash During the listforeachentryrcu iteration call of...
ROS-20260904-73-0012
The vulnerability of the xen-netback driver in Linux operating systems is related to improper blocking mechanisms. Exploiting this vulnerability can allow attackers to cause service failures...
xen-netback DoS
The vulnerability of the xen-netback component in the Linux operating system’s kernel is related to incorrect checking of the amount of data at the input. Exploiting this vulnerability can allow an attacker to cause a service failure...
Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12
In the Linux kernel, the following vulnerability has been resolved: xen-netback: Rejects configurations with a zero queue count from guests. A malicious or faulty Xen guest can set the value of the xenbus key “multi-queue-num-queues” to “0”. The connect function in the backend only validates the...
SUSE CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
A flaw was found in the Linux kernel's xen-netback component. A malicious or buggy Xen guest can exploit this by writing a zero value to the 'multi-queue-num-queues' xenbus key. This improper input validation can trigger a warning in the kernel's memory allocation, leading to a guest-to-host Deni...
EUVD-2026-32356
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
UBUNTU-CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890 xen-netback: reject zero-queue configuration from guest
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890 xen-netback: reject zero-queue configuration from guest
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
The CVE-2026-45890 issue affects the Linux kernel xen-netback in Xen environments. The backend validated the upper bound of multi-queue config but did not reject zero, allowing a guest to set multi-queue-num-queues to 0. This leads to vzalloc(array_size(0, sizeof(struct xenvif_queue))) and WARN_O...
CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890: Undefined Security Weakness
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
Linux Kernel Security Vulnerabilities
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 xen-netback backend not verifying that the queue number is zero, potentially leading to a...