Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053261)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053261 advisory. In the Linux kernel, the following vulnerability has been resolved: mailbox: Prevent out-of-bounds access in fwmboxindexxlate Although it is guided that mbox-cells...

Linux kernel mailbox driver Heap Buffer Overflow DoS

The vulnerability of the fwmboxindexxlate function in the drivers/mailbox/mailbox.c file of the Linux kernel’s mailbox driver module is related to operations that go beyond the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to access protected information or...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mailbox: Out-of-bounds access has been prevented in fwmboxindexxlate. Although it is guided that mbox-cells must be at least 1, there are many instances in the device tree where mbox-cells = ; is specified. If this is the case, a...

CVE-2026-43281

A flaw was found in the Linux kernel. Specifically, within the mailbox subsystem, an out-of-bounds access vulnerability exists in the fwmboxindexxlate function. This issue arises when the device tree is configured with mbox-cells = and the associated mailbox controller does not provide fwxlate an...

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 lack of boundary checks in the fwmboxindexxlate function, potentially leading to out-of-bound...

CVE-2026-43281: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: mailbox: Prevent out-of-bounds access in fwmboxindexxlate Although it is guided that mbox-cells must be at least 1, there are many instances of mbox-cells = ; in the device tree. If that is the case and the corresponding mailbox...