==========================================================================
Ubuntu Security Notice USN-7593-1
June 24, 2025

linux-hwe-5.15 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel

Details:

Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)

It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)

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;
   - Block layer subsystem;
   - ACPI drivers;
   - Network block device driver;
   - Bus devices;
   - Character device driver;
   - TPM device driver;
   - Clock framework and drivers;
   - GPIO subsystem;
   - GPU drivers;
   - HID subsystem;
   - I2C subsystem;
   - InfiniBand drivers;
   - Media drivers;
   - NVIDIA Tegra memory controller driver;
   - MemoryStick subsystem;
   - Network drivers;
   - Mellanox network drivers;
   - NTB driver;
   - PCI subsystem;
   - PPS (Pulse Per Second) driver;
   - PTP clock framework;
   - RapidIO drivers;
   - Voltage and Current Regulator drivers;
   - Remote Processor subsystem;
   - Real Time Clock drivers;
   - SCSI subsystem;
   - SLIMbus drivers;
   - QCOM SoC drivers;
   - Trusted Execution Environment drivers;
   - Thermal drivers;
   - TTY drivers;
   - USB DSL drivers;
   - USB Device Class drivers;
   - USB core drivers;
   - USB Gadget drivers;
   - USB Host Controller drivers;
   - Renesas USBHS Controller drivers;
   - ACRN Hypervisor Service Module driver;
   - File systems infrastructure;
   - BTRFS file system;
   - Ext4 file system;
   - F2FS file system;
   - JFS file system;
   - Network file system (NFS) server daemon;
   - NILFS2 file system;
   - NTFS3 file system;
   - Overlay file system;
   - Proc file system;
   - SMB network file system;
   - UBI file system;
   - KVM subsystem;
   - IPv6 networking;
   - L3 Master device support module;
   - RDMA verbs API;
   - SoC audio core drivers;
   - Process Accounting mechanism;
   - Padata parallel execution mechanism;
   - printk logging mechanism;
   - Scheduler infrastructure;
   - Timer subsystem;
   - Tracing infrastructure;
   - Watch queue notification mechanism;
   - Memory management;
   - 802.1Q VLAN protocol;
   - Asynchronous Transfer Mode (ATM) subsystem;
   - B.A.T.M.A.N. meshing protocol;
   - Bluetooth subsystem;
   - Networking core;
   - IPv4 networking;
   - Logical Link layer;
   - Multipath TCP;
   - Netfilter;
   - NFC subsystem;
   - Open vSwitch;
   - Rose network layer;
   - Network traffic control;
   - SMC sockets;
   - Sun RPC protocol;
   - Wireless networking;
   - Landlock security;
   - Linux Security Modules (LSM) Framework;
   - Tomoyo security module;
   - SoC Audio for Freescale CPUs drivers;
(CVE-2024-46821, CVE-2025-21992, CVE-2025-21811, CVE-2025-21806,
CVE-2022-49728, CVE-2025-21959, CVE-2025-21745, CVE-2025-21708,
CVE-2024-58071, CVE-2025-21941, CVE-2025-22008, CVE-2025-21865,
CVE-2024-58052, CVE-2025-22097, CVE-2024-42230, CVE-2025-21765,
CVE-2025-21859, CVE-2024-57981, CVE-2025-21761, CVE-2025-22007,
CVE-2025-21726, CVE-2025-21956, CVE-2025-21704, CVE-2025-21910,
CVE-2024-58072, CVE-2025-21934, CVE-2025-39728, CVE-2025-21948,
CVE-2025-22021, CVE-2024-58007, CVE-2025-21866, CVE-2025-22089,
CVE-2025-21779, CVE-2025-22086, CVE-2025-21887, CVE-2025-22056,
CVE-2025-21735, CVE-2024-58093, CVE-2025-21728, CVE-2024-56721,
CVE-2024-58076, CVE-2024-53144, CVE-2025-22055, CVE-2025-21772,
CVE-2025-21721, CVE-2025-37785, CVE-2025-21943, CVE-2025-21920,
CVE-2025-21762, CVE-2024-56608, CVE-2025-21758, CVE-2025-21718,
CVE-2025-21971, CVE-2024-58083, CVE-2025-21711, CVE-2025-22079,
CVE-2025-21802, CVE-2024-58051, CVE-2025-22073, CVE-2024-57973,
CVE-2025-21926, CVE-2025-21823, CVE-2025-21647, CVE-2025-21731,
CVE-2024-53168, CVE-2025-21791, CVE-2025-22014, CVE-2025-21781,
CVE-2025-21875, CVE-2024-57978, CVE-2025-21924, CVE-2024-58086,
CVE-2025-21905, CVE-2025-37937, CVE-2025-21962, CVE-2025-21968,
CVE-2025-22075, CVE-2025-21749, CVE-2025-21766, CVE-2025-21736,
CVE-2024-58005, CVE-2025-21763, CVE-2024-46812, CVE-2025-21917,
CVE-2024-58034, CVE-2024-58016, CVE-2025-21919, CVE-2025-39735,
CVE-2025-21914, CVE-2025-22054, CVE-2025-21753, CVE-2025-21785,
CVE-2025-21964, CVE-2024-56664, CVE-2025-21764, CVE-2024-58017,
CVE-2025-21835, CVE-2025-21871, CVE-2025-21760, CVE-2024-58014,
CVE-2024-58055, CVE-2024-58063, CVE-2025-38152, CVE-2023-53034,
CVE-2025-21820, CVE-2025-22044, CVE-2025-21782, CVE-2025-21912,
CVE-2024-58069, CVE-2025-21727, CVE-2025-21748, CVE-2025-22063,
CVE-2024-57986, CVE-2024-57980, CVE-2025-22010, CVE-2025-22005,
CVE-2025-21846, CVE-2025-21830, CVE-2025-21963, CVE-2025-22050,
CVE-2025-22045, CVE-2025-22066, CVE-2025-21999, CVE-2024-36945,
CVE-2025-21844, CVE-2025-21922, CVE-2024-58010, CVE-2025-21925,
CVE-2025-22035, CVE-2024-46753, CVE-2025-21898, CVE-2024-58001,
CVE-2025-21715, CVE-2024-56599, CVE-2025-21719, CVE-2025-21707,
CVE-2025-23136, CVE-2025-21684, CVE-2025-21981, CVE-2025-21877,
CVE-2025-21799, CVE-2025-21722, CVE-2024-56551, CVE-2025-21848,
CVE-2025-22025, CVE-2025-38575, CVE-2025-21814, CVE-2025-22081,
CVE-2025-21950, CVE-2025-22004, CVE-2024-58002, CVE-2025-21787,
CVE-2025-21776, CVE-2025-37889, CVE-2022-49636, CVE-2024-58090,
CVE-2025-38637, CVE-2024-57979, CVE-2025-21970, CVE-2025-21916,
CVE-2025-22020, CVE-2025-21858, CVE-2025-22018, CVE-2024-58020,
CVE-2025-21744, CVE-2025-21804, CVE-2025-21767, CVE-2024-26982,
CVE-2024-47726, CVE-2025-21862, CVE-2025-21951, CVE-2025-21796,
CVE-2025-21878, CVE-2025-21975, CVE-2025-21996, CVE-2025-22060,
CVE-2025-23138, CVE-2025-22071, CVE-2025-21795, CVE-2025-21928,
CVE-2025-21994, CVE-2024-58085, CVE-2024-58058, CVE-2024-58079,
CVE-2024-57977, CVE-2024-57834, CVE-2025-21909, CVE-2025-21826,
CVE-2025-21991, CVE-2025-21935, CVE-2025-21904, CVE-2025-21957)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.15.0-142-generic  5.15.0-142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-142-generic-64k  5.15.0-142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-5.15.0-142-generic-lpae  5.15.0-142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-64k-hwe-20.04  5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-20.04   5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-lpae-hwe-20.04  5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04           5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04b          5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04c          5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-oem-20.04d          5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-20.04   5.15.0.142.152~20.04.1
                                   Available with Ubuntu Pro

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-7593-1
   CVE-2022-49636, CVE-2022-49728, CVE-2023-53034, CVE-2024-26982,
   CVE-2024-36945, CVE-2024-42230, CVE-2024-46753, CVE-2024-46812,
   CVE-2024-46821, CVE-2024-47726, CVE-2024-53144, CVE-2024-53168,
   CVE-2024-56551, CVE-2024-56599, CVE-2024-56608, CVE-2024-56664,
   CVE-2024-56721, CVE-2024-57834, CVE-2024-57973, CVE-2024-57977,
   CVE-2024-57978, CVE-2024-57979, CVE-2024-57980, CVE-2024-57981,
   CVE-2024-57986, CVE-2024-58001, CVE-2024-58002, CVE-2024-58005,
   CVE-2024-58007, CVE-2024-58010, CVE-2024-58014, CVE-2024-58016,
   CVE-2024-58017, CVE-2024-58020, CVE-2024-58034, CVE-2024-58051,
   CVE-2024-58052, CVE-2024-58055, CVE-2024-58058, CVE-2024-58063,
   CVE-2024-58069, CVE-2024-58071, CVE-2024-58072, CVE-2024-58076,
   CVE-2024-58079, CVE-2024-58083, CVE-2024-58085, CVE-2024-58086,
   CVE-2024-58090, CVE-2024-58093, CVE-2024-8805, CVE-2025-21647,
   CVE-2025-21684, CVE-2025-21704, CVE-2025-21707, CVE-2025-21708,
   CVE-2025-21711, CVE-2025-21715, CVE-2025-21718, CVE-2025-21719,
   CVE-2025-21721, CVE-2025-21722, CVE-2025-21726, CVE-2025-21727,
   CVE-2025-21728, CVE-2025-21731, CVE-2025-21735, CVE-2025-21736,
   CVE-2025-21744, CVE-2025-21745, CVE-2025-21748, CVE-2025-21749,
   CVE-2025-21753, CVE-2025-21758, CVE-2025-21760, CVE-2025-21761,
   CVE-2025-21762, CVE-2025-21763, CVE-2025-21764, CVE-2025-21765,
   CVE-2025-21766, CVE-2025-21767, CVE-2025-21772, CVE-2025-21776,
   CVE-2025-21779, CVE-2025-21781, CVE-2025-21782, CVE-2025-21785,
   CVE-2025-21787, CVE-2025-21791, CVE-2025-21795, CVE-2025-21796,
   CVE-2025-21799, CVE-2025-21802, CVE-2025-21804, CVE-2025-21806,
   CVE-2025-21811, CVE-2025-21814, CVE-2025-21820, CVE-2025-21823,
   CVE-2025-21826, CVE-2025-21830, CVE-2025-21835, CVE-2025-21844,
   CVE-2025-21846, CVE-2025-21848, CVE-2025-21858, CVE-2025-21859,
   CVE-2025-21862, CVE-2025-21865, CVE-2025-21866, CVE-2025-21871,
   CVE-2025-21875, CVE-2025-21877, CVE-2025-21878, CVE-2025-21887,
   CVE-2025-21898, CVE-2025-21904, CVE-2025-21905, CVE-2025-21909,
   CVE-2025-21910, CVE-2025-21912, CVE-2025-21914, CVE-2025-21916,
   CVE-2025-21917, CVE-2025-21919, CVE-2025-21920, CVE-2025-21922,
   CVE-2025-21924, CVE-2025-21925, CVE-2025-21926, CVE-2025-21928,
   CVE-2025-21934, CVE-2025-21935, CVE-2025-21941, CVE-2025-21943,
   CVE-2025-21948, CVE-2025-21950, CVE-2025-21951, CVE-2025-21956,
   CVE-2025-21957, CVE-2025-21959, CVE-2025-21962, CVE-2025-21963,
   CVE-2025-21964, CVE-2025-21968, CVE-2025-21970, CVE-2025-21971,
   CVE-2025-21975, CVE-2025-21981, CVE-2025-21991, CVE-2025-21992,
   CVE-2025-21994, CVE-2025-21996, CVE-2025-21999, CVE-2025-22004,
   CVE-2025-22005, CVE-2025-22007, CVE-2025-22008, CVE-2025-22010,
   CVE-2025-22014, CVE-2025-22018, CVE-2025-22020, CVE-2025-22021,
   CVE-2025-22025, CVE-2025-22035, CVE-2025-22044, CVE-2025-22045,
   CVE-2025-22050, CVE-2025-22054, CVE-2025-22055, CVE-2025-22056,
   CVE-2025-22060, CVE-2025-22063, CVE-2025-22066, CVE-2025-22071,
   CVE-2025-22073, CVE-2025-22075, CVE-2025-22079, CVE-2025-22081,
   CVE-2025-22086, CVE-2025-22089, CVE-2025-22097, CVE-2025-2312,
   CVE-2025-23136, CVE-2025-23138, CVE-2025-37785, CVE-2025-37889,
   CVE-2025-37937, CVE-2025-38152, CVE-2025-38575, CVE-2025-38637,
   CVE-2025-39728, CVE-2025-39735