Thursday , April 24 2025
Linux

126 Linux kernel Vulns Allow Attackers Exploit 78 Linux Sub-Systems

Ubuntu 22.04 LTS users are advised to update their systems right away due to a crucial security patch from Canonical that fixes critical vulnerabilities in the Linux kernel for Xilinx ZynqMP processors.

The Linux kernel for Xilinx Zynq UltraScale+ MPSoC is customized to support the features and hardware of these processors.

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These processors feature a quad-core ARM Cortex-A53 (64-bit) application processor, a dual-core ARM Cortex-R5 (32-bit) real-time processor, an ARM Mali-400 GPU, and programmable logic (FPGA).

The Linux kernel is a strong foundation for embedded and general-purpose applications on devices. If unpatched, these flaws could let attackers gain unauthorized access or disrupt systems.

โ€œSeveral security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the systemโ€.

The patch fixes hundreds of CVEs across various subsystems, architectures, drivers, and protocols. A full list of fixed CVEs can be found in the official security notice.

The new Linux kernel update brings important security fixes and performance enhancements across several subsystems:

Architectures: Updates for ARM32, x86, RISC-V, and S390.
File Systems: Enhanced security and performance for BTRFS, Ext4, GFS2, Ceph, NFS, JFS, and F2FS.
Drivers: Fixes for GPU, USB, Bluetooth, GPIO, Ethernet bonding, and InfiniBand drivers.
Networking: Improvements to TCP, SCTP, IPv4, IPv6, Netfilter, and more.
Security Frameworks: Updates for SELinux and access control modules.
Core Components: Optimizations for memory management and tracing infrastructure.

Source: Ubuntu

Ubuntu has released security updates for vulnerabilities in other systems, along with subsystem updates.

Source: Ubuntu
The vulnerabilities impact various subsystems in the Linux kernel, highlighting their complexity. For the complete list, refer to the Ubuntu Security Notice (USN-7166-4).ย Canonical has released a kernel update for the linux-xilinx-zynqmp package, version 5.15.0-1039.43. Users should check their current version and upgrade to enhance system security.

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