========================================================================== Ubuntu Security Notice USN-7835-4 October 31, 2025
linux-hwe-6.8 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-hwe-6.8: Linux hardware enablement (HWE) kernel Details: Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Ublk userspace block driver; - Clock framework and drivers; - GPU drivers; - IIO subsystem; - InfiniBand drivers; - Media drivers; - MemoryStick subsystem; - Network drivers; - NTB driver; - PCI subsystem; - Remote Processor subsystem; - Thermal drivers; - Virtio Host (VHOST) subsystem; - 9P distributed file system; - File systems infrastructure; - JFS file system; - Network file system (NFS) server daemon; - NTFS3 file system; - SMB network file system; - Memory management; - RDMA verbs API; - Kernel fork() syscall; - Tracing infrastructure; - Watch queue notification mechanism; - Asynchronous Transfer Mode (ATM) subsystem; - Networking core; - IPv4 networking; - IPv6 networking; - Netfilter; - Network traffic control; - SCTP protocol; - TLS protocol; - SoC Audio for Freescale CPUs drivers; (CVE-2025-39728, CVE-2025-23136, CVE-2025-22062, CVE-2025-22035, CVE-2025-22020, CVE-2025-22083, CVE-2025-22071, CVE-2025-22060, CVE-2025-22073, CVE-2025-22044, CVE-2025-22063, CVE-2025-22079, CVE-2025-22057, CVE-2025-22095, CVE-2025-39735, CVE-2025-39682, CVE-2025-22058, CVE-2025-22021, CVE-2025-22018, CVE-2025-22056, CVE-2025-22054, CVE-2025-22080, CVE-2025-22039, CVE-2025-22019, CVE-2025-22038, CVE-2025-22028, CVE-2023-53034, CVE-2024-58092, CVE-2025-38637, CVE-2025-22089, CVE-2025-40114, CVE-2025-22068, CVE-2025-37937, CVE-2025-22070, CVE-2025-22072, CVE-2025-22086, CVE-2025-22050, CVE-2025-22040, CVE-2025-22065, CVE-2025-38575, CVE-2025-22064, CVE-2025-22033, CVE-2025-22041, CVE-2025-22090, CVE-2025-22036, CVE-2025-23138, CVE-2025-22047, CVE-2025-38240, CVE-2025-22066, CVE-2025-22042, CVE-2025-38152, CVE-2025-22055, CVE-2025-22081, CVE-2025-22045, CVE-2025-22053, CVE-2025-22075, CVE-2025-22027, CVE-2025-22025, CVE-2025-22097) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-6.8.0-86-generic 6.8.0-86.87~22.04.1 linux-image-6.8.0-86-generic-64k 6.8.0-86.87~22.04.1 linux-image-generic-6.8 6.8.0-86.87~22.04.1 linux-image-generic-64k-6.8 6.8.0-86.87~22.04.1 linux-image-generic-64k-hwe-22.04 6.8.0-86.87~22.04.1 linux-image-generic-hwe-22.04 6.8.0-86.87~22.04.1 linux-image-oem-22.04 6.8.0-86.87~22.04.1 linux-image-oem-22.04a 6.8.0-86.87~22.04.1 linux-image-oem-22.04b 6.8.0-86.87~22.04.1 linux-image-oem-22.04c 6.8.0-86.87~22.04.1 linux-image-oem-22.04d 6.8.0-86.87~22.04.1 linux-image-virtual-6.8 6.8.0-86.87~22.04.1 linux-image-virtual-hwe-22.04 6.8.0-86.87~22.04.1 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-7835-4 https://ubuntu.com/security/notices/USN-7835-3 https://ubuntu.com/security/notices/USN-7835-2 https://ubuntu.com/security/notices/USN-7835-1 CVE-2023-53034, CVE-2024-58092, CVE-2025-22018, CVE-2025-22019, CVE-2025-22020, CVE-2025-22021, CVE-2025-22025, CVE-2025-22027, CVE-2025-22028, CVE-2025-22033, CVE-2025-22035, CVE-2025-22036, CVE-2025-22038, CVE-2025-22039, CVE-2025-22040, CVE-2025-22041, CVE-2025-22042, CVE-2025-22044, CVE-2025-22045, CVE-2025-22047, CVE-2025-22050, CVE-2025-22053, CVE-2025-22054, CVE-2025-22055, CVE-2025-22056, CVE-2025-22057, CVE-2025-22058, CVE-2025-22060, CVE-2025-22062, CVE-2025-22063, CVE-2025-22064, CVE-2025-22065, CVE-2025-22066, CVE-2025-22068, CVE-2025-22070, CVE-2025-22071, CVE-2025-22072, CVE-2025-22073, CVE-2025-22075, CVE-2025-22079, CVE-2025-22080, CVE-2025-22081, CVE-2025-22083, CVE-2025-22086, CVE-2025-22089, CVE-2025-22090, CVE-2025-22095, CVE-2025-22097, CVE-2025-23136, CVE-2025-23138, CVE-2025-37937, CVE-2025-38152, CVE-2025-38240, CVE-2025-38575, CVE-2025-38637, CVE-2025-39682, CVE-2025-39728, CVE-2025-39735, CVE-2025-40114 Package Information: https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-86.87~22.04.1
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