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[USN-7652-1] Linux kernel (Real-time) vulnerabilities

Posted on 17 July 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7652-1
July 17, 2025

linux-realtime vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-realtime: Linux kernel for Real-time systems

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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platform drivers;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- Remote Processor subsystem;
- Real Time Clock drivers;
- SCSI subsystem;
- QCOM SoC drivers;
- Media staging drivers;
- TTY drivers;
- UFS subsystem;
- USB Gadget drivers;
- USB Host Controller drivers;
- File systems infrastructure;
- BTRFS file system;
- F2FS file system;
- NILFS2 file system;
- SMB network file system;
- UBI file system;
- Timer subsystem;
- KVM subsystem;
- Networking core;
- ptr_ring data structure definitions;
- Networking subsytem;
- Amateur Radio drivers;
- XFRM subsystem;
- Tracing infrastructure;
- BPF subsystem;
- Padata parallel execution mechanism;
- printk logging mechanism;
- Memory management;
- Bluetooth subsystem;
- IPv4 networking;
- IPv6 networking;
- MAC80211 subsystem;
- Multipath TCP;
- Netfilter;
- NFC subsystem;
- Rose network layer;
- RxRPC session sockets;
- Network traffic control;
- Landlock security;
- Linux Security Modules (LSM) Framework;
- Tomoyo security module;
- SoC audio core drivers;
(CVE-2024-58055, CVE-2024-58077, CVE-2024-58080, CVE-2024-58082,
CVE-2025-21743, CVE-2024-57953, CVE-2024-57994, CVE-2025-21806,
CVE-2024-58007, CVE-2024-58002, CVE-2024-57974, CVE-2024-57980,
CVE-2025-21720, CVE-2024-57990, CVE-2025-21725, CVE-2024-58057,
CVE-2024-58018, CVE-2024-58011, CVE-2025-21814, CVE-2025-21799,
CVE-2024-58017, CVE-2024-58014, CVE-2025-21731, CVE-2024-58072,
CVE-2024-58069, CVE-2024-58006, CVE-2024-57984, CVE-2025-21710,
CVE-2024-58061, CVE-2024-57997, CVE-2024-57975, CVE-2025-21724,
CVE-2025-37974, CVE-2025-21808, CVE-2024-58056, CVE-2025-21753,
CVE-2024-58068, CVE-2025-21728, CVE-2025-21714, CVE-2024-58054,
CVE-2025-21741, CVE-2025-21736, CVE-2025-21715, CVE-2025-21802,
CVE-2025-21739, CVE-2025-21727, CVE-2025-21749, CVE-2024-58053,
CVE-2024-58081, CVE-2025-21828, CVE-2025-21705, CVE-2024-58051,
CVE-2024-57979, CVE-2025-21754, CVE-2025-21734, CVE-2025-21829,
CVE-2025-21735, CVE-2025-21826, CVE-2025-21738, CVE-2024-58079,
CVE-2025-21815, CVE-2025-21708, CVE-2024-57986, CVE-2024-58085,
CVE-2025-21801, CVE-2024-58071, CVE-2025-21810, CVE-2025-21726,
CVE-2025-21744, CVE-2025-21830, CVE-2025-21748, CVE-2024-58001,
CVE-2024-58063, CVE-2024-57996, CVE-2025-21716, CVE-2024-58013,
CVE-2024-58019, CVE-2025-21811, CVE-2025-21711, CVE-2024-58076,
CVE-2024-58070, CVE-2024-57982, CVE-2024-57998, CVE-2025-21745,
CVE-2025-21804, CVE-2024-57973, CVE-2024-58083, CVE-2025-21742,
CVE-2025-37750, CVE-2025-21733, CVE-2025-21750, CVE-2024-57981,
CVE-2025-21718, CVE-2024-58058, CVE-2024-49887, CVE-2024-58003,
CVE-2024-57993, CVE-2024-57999, CVE-2024-58010, CVE-2025-21825,
CVE-2025-21732, CVE-2025-21719, CVE-2025-21721, CVE-2024-58034,
CVE-2024-58005, CVE-2025-21707, CVE-2025-21809, CVE-2024-58078,
CVE-2025-21812, CVE-2024-58016, CVE-2025-21816, CVE-2024-58052,
CVE-2025-21722, CVE-2025-21832, CVE-2025-21723, CVE-2025-21820,
CVE-2025-21798)

Update instructions:

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

Ubuntu 24.04 LTS
linux-image-6.8.1-1025-realtime 6.8.1-1025.26
Available with Ubuntu Pro
linux-image-realtime 6.8.1-1025.26
Available with Ubuntu Pro
linux-image-realtime-6.8.1 6.8.1-1025.26
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-7652-1
CVE-2024-49887, CVE-2024-57953, CVE-2024-57973, CVE-2024-57974,
CVE-2024-57975, CVE-2024-57979, CVE-2024-57980, CVE-2024-57981,
CVE-2024-57982, CVE-2024-57984, CVE-2024-57986, CVE-2024-57990,
CVE-2024-57993, CVE-2024-57994, CVE-2024-57996, CVE-2024-57997,
CVE-2024-57998, CVE-2024-57999, CVE-2024-58001, CVE-2024-58002,
CVE-2024-58003, CVE-2024-58005, CVE-2024-58006, CVE-2024-58007,
CVE-2024-58010, CVE-2024-58011, CVE-2024-58013, CVE-2024-58014,
CVE-2024-58016, CVE-2024-58017, CVE-2024-58018, CVE-2024-58019,
CVE-2024-58034, CVE-2024-58051, CVE-2024-58052, CVE-2024-58053,
CVE-2024-58054, CVE-2024-58055, CVE-2024-58056, CVE-2024-58057,
CVE-2024-58058, CVE-2024-58061, CVE-2024-58063, CVE-2024-58068,
CVE-2024-58069, CVE-2024-58070, CVE-2024-58071, CVE-2024-58072,
CVE-2024-58076, CVE-2024-58077, CVE-2024-58078, CVE-2024-58079,
CVE-2024-58080, CVE-2024-58081, CVE-2024-58082, CVE-2024-58083,
CVE-2024-58085, CVE-2025-21705, CVE-2025-21707, CVE-2025-21708,
CVE-2025-21710, CVE-2025-21711, CVE-2025-21714, CVE-2025-21715,
CVE-2025-21716, CVE-2025-21718, CVE-2025-21719, CVE-2025-21720,
CVE-2025-21721, CVE-2025-21722, CVE-2025-21723, CVE-2025-21724,
CVE-2025-21725, CVE-2025-21726, CVE-2025-21727, CVE-2025-21728,
CVE-2025-21731, CVE-2025-21732, CVE-2025-21733, CVE-2025-21734,
CVE-2025-21735, CVE-2025-21736, CVE-2025-21738, CVE-2025-21739,
CVE-2025-21741, CVE-2025-21742, CVE-2025-21743, CVE-2025-21744,
CVE-2025-21745, CVE-2025-21748, CVE-2025-21749, CVE-2025-21750,
CVE-2025-21753, CVE-2025-21754, CVE-2025-21798, CVE-2025-21799,
CVE-2025-21801, CVE-2025-21802, CVE-2025-21804, CVE-2025-21806,
CVE-2025-21808, CVE-2025-21809, CVE-2025-21810, CVE-2025-21811,
CVE-2025-21812, CVE-2025-21814, CVE-2025-21815, CVE-2025-21816,
CVE-2025-21820, CVE-2025-21825, CVE-2025-21826, CVE-2025-21828,
CVE-2025-21829, CVE-2025-21830, CVE-2025-21832, CVE-2025-37750,
CVE-2025-37974

Package Information:
https://launchpad.net/ubuntu/+source/linux-realtime/6.8.1-1025.26


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