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Ubuntu alert USN-7801-1 (linux-hwe-6.8)



From:
              Giampaolo Fresi Roglia <giampaolo.fresi.roglia@canonical.com>


To:
              ubuntu-security-announce@lists.ubuntu.com


Subject:
              [USN-7801-1] Linux kernel (HWE) vulnerabilities


Date:
              Thu, 02 Oct 2025 16:01:23 +0200


Message-ID:
              <877bxd1jyk.fsf@canonical.com>


==========================================================================
Ubuntu Security Notice USN-7801-1
October 02, 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:
  - ARM32 architecture;
  - ARM64 architecture;
  - x86 architecture;
  - Compute Acceleration Framework;
  - Bus devices;
  - AMD CDX bus driver;
  - DPLL subsystem;
  - EFI core;
  - GPIO subsystem;
  - GPU drivers;
  - HID subsystem;
  - I2C subsystem;
  - InfiniBand drivers;
  - Multiple devices driver;
  - Network drivers;
  - Mellanox network drivers;
  - NVME drivers;
  - Pin controllers subsystem;
  - RapidIO drivers;
  - Voltage and Current Regulator drivers;
  - SCSI subsystem;
  - SLIMbus drivers;
  - QCOM SoC drivers;
  - UFS subsystem;
  - USB DSL drivers;
  - Renesas USBHS Controller drivers;
  - USB Type-C Connector System Software Interface driver;
  - Framebuffer layer;
  - ACRN Hypervisor Service Module driver;
  - Ext4 file system;
  - Network file system (NFS) client;
  - Proc file system;
  - SMB network file system;
  - Memory Management;
  - Scheduler infrastructure;
  - SoC audio core drivers;
  - Perf events;
  - Tracing infrastructure;
  - Memory management;
  - 802.1Q VLAN protocol;
  - Asynchronous Transfer Mode (ATM) subsystem;
  - Bluetooth subsystem;
  - Devlink API;
  - IPv4 networking;
  - IPv6 networking;
  - Logical Link layer;
  - Management Component Transport Protocol (MCTP);
  - Multipath TCP;
  - Netfilter;
  - Packet sockets;
  - Network traffic control;
  - Switch device API;
  - TLS protocol;
  - VMware vSockets driver;
  - Wireless networking;
  - eXpress Data Path;
  - XFRM subsystem;
(CVE-2025-21928, CVE-2025-21976, CVE-2025-21890, CVE-2025-21929,
CVE-2025-21960, CVE-2025-21978, CVE-2025-21937, CVE-2025-21908,
CVE-2025-21999, CVE-2025-22015, CVE-2025-21967, CVE-2025-21913,
CVE-2025-21898, CVE-2025-37756, CVE-2025-38617, CVE-2025-21927,
CVE-2025-21956, CVE-2025-21979, CVE-2025-21955, CVE-2025-21895,
CVE-2025-21969, CVE-2025-21877, CVE-2025-21936, CVE-2025-22001,
CVE-2025-37889, CVE-2025-21875, CVE-2025-21888, CVE-2025-21911,
CVE-2025-21904, CVE-2025-21878, CVE-2025-21961, CVE-2025-22013,
CVE-2025-21986, CVE-2025-21915, CVE-2025-21889, CVE-2025-21903,
CVE-2025-21909, CVE-2025-21950, CVE-2025-21885, CVE-2025-21966,
CVE-2025-21873, CVE-2025-21883, CVE-2025-21946, CVE-2025-22003,
CVE-2025-22014, CVE-2024-58090, CVE-2025-21891, CVE-2025-21962,
CVE-2025-21948, CVE-2025-21924, CVE-2025-22017, CVE-2025-21975,
CVE-2025-21920, CVE-2025-21972, CVE-2025-21964, CVE-2025-21917,
CVE-2025-21894, CVE-2025-21982, CVE-2025-21945, CVE-2025-21996,
CVE-2025-21995, CVE-2025-21912, CVE-2025-21910, CVE-2025-21980,
CVE-2025-21951, CVE-2025-21934, CVE-2025-21994, CVE-2025-37785,
CVE-2025-22009, CVE-2025-38618, CVE-2025-21992, CVE-2025-21930,
CVE-2025-21941, CVE-2025-21916, CVE-2025-22004, CVE-2025-21919,
CVE-2025-21880, CVE-2025-21963, CVE-2025-21914, CVE-2025-21981,
CVE-2025-38500, CVE-2025-22005, CVE-2025-21959, CVE-2025-21899,
CVE-2025-21926, CVE-2025-21968, CVE-2025-21944, CVE-2025-22016,
CVE-2025-38477, CVE-2025-22008, CVE-2025-21925, CVE-2025-21997,
CVE-2025-21935, CVE-2025-21947, CVE-2025-22010, CVE-2025-21977,
CVE-2025-21922, CVE-2025-21881, CVE-2025-21970, CVE-2025-22007,
CVE-2025-21991, CVE-2025-21918, CVE-2025-21905, CVE-2025-22011,
CVE-2025-21872, CVE-2025-21957, CVE-2025-21892)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
  linux-image-6.8.0-85-generic    6.8.0-85.85~22.04.1
  linux-image-6.8.0-85-generic-64k  6.8.0-85.85~22.04.1
  linux-image-generic-6.8         6.8.0-85.85~22.04.1
  linux-image-generic-64k-6.8     6.8.0-85.85~22.04.1
  linux-image-generic-64k-hwe-22.04  6.8.0-85.85~22.04.1
  linux-image-generic-hwe-22.04   6.8.0-85.85~22.04.1
  linux-image-oem-22.04           6.8.0-85.85~22.04.1
  linux-image-oem-22.04a          6.8.0-85.85~22.04.1
  linux-image-oem-22.04b          6.8.0-85.85~22.04.1
  linux-image-oem-22.04c          6.8.0-85.85~22.04.1
  linux-image-oem-22.04d          6.8.0-85.85~22.04.1
  linux-image-virtual-6.8         6.8.0-85.85~22.04.1
  linux-image-virtual-hwe-22.04   6.8.0-85.85~22.04.1

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-7801-1
  CVE-2024-58090, CVE-2025-21872, CVE-2025-21873, CVE-2025-21875,
  CVE-2025-21877, CVE-2025-21878, CVE-2025-21880, CVE-2025-21881,
  CVE-2025-21883, CVE-2025-21885, CVE-2025-21888, CVE-2025-21889,
  CVE-2025-21890, CVE-2025-21891, CVE-2025-21892, CVE-2025-21894,
  CVE-2025-21895, CVE-2025-21898, CVE-2025-21899, CVE-2025-21903,
  CVE-2025-21904, CVE-2025-21905, CVE-2025-21908, CVE-2025-21909,
  CVE-2025-21910, CVE-2025-21911, CVE-2025-21912, CVE-2025-21913,
  CVE-2025-21914, CVE-2025-21915, CVE-2025-21916, CVE-2025-21917,
  CVE-2025-21918, CVE-2025-21919, CVE-2025-21920, CVE-2025-21922,
  CVE-2025-21924, CVE-2025-21925, CVE-2025-21926, CVE-2025-21927,
  CVE-2025-21928, CVE-2025-21929, CVE-2025-21930, CVE-2025-21934,
  CVE-2025-21935, CVE-2025-21936, CVE-2025-21937, CVE-2025-21941,
  CVE-2025-21944, CVE-2025-21945, CVE-2025-21946, CVE-2025-21947,
  CVE-2025-21948, CVE-2025-21950, CVE-2025-21951, CVE-2025-21955,
  CVE-2025-21956, CVE-2025-21957, CVE-2025-21959, CVE-2025-21960,
  CVE-2025-21961, CVE-2025-21962, CVE-2025-21963, CVE-2025-21964,
  CVE-2025-21966, CVE-2025-21967, CVE-2025-21968, CVE-2025-21969,
  CVE-2025-21970, CVE-2025-21972, CVE-2025-21975, CVE-2025-21976,
  CVE-2025-21977, CVE-2025-21978, CVE-2025-21979, CVE-2025-21980,
  CVE-2025-21981, CVE-2025-21982, CVE-2025-21986, CVE-2025-21991,
  CVE-2025-21992, CVE-2025-21994, CVE-2025-21995, CVE-2025-21996,
  CVE-2025-21997, CVE-2025-21999, CVE-2025-22001, CVE-2025-22003,
  CVE-2025-22004, CVE-2025-22005, CVE-2025-22007, CVE-2025-22008,
  CVE-2025-22009, CVE-2025-22010, CVE-2025-22011, CVE-2025-22013,
  CVE-2025-22014, CVE-2025-22015, CVE-2025-22016, CVE-2025-22017,
  CVE-2025-37756, CVE-2025-37785, CVE-2025-37889, CVE-2025-38477,
  CVE-2025-38500, CVE-2025-38617, CVE-2025-38618

Package Information:
  https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-...





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