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==========================================================================
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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