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Ubuntu 22.04 LTS: Addressing Critical Linux Kernel Security USN-7653-1

ubuntu
Calendar Grey July 17, 2025
Dist Ubuntu Esm H88
Recent enhancements to the Ubuntu kernel tackle vital vulnerabilities that jeopardize system stability and the privacy of user information.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-hwe-6.8: Linux hardware enablement (HWE) kernel

Details:

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:

- 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;

- GPIO subsystem;

- GPU drivers;

- HID subsystem;

- I3C subsystem;

- InfiniBand drivers;

- IOMMU subsystem;

- IRQ chip drivers;

- Media drivers;

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical access control threat Ubuntu filesystem

Update Instructions

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

Ubuntu 22.04 LTS
  linux-image-6.8.0-64-generic    6.8.0-64.67~22.04.1
  linux-image-6.8.0-64-generic-64k  6.8.0-64.67~22.04.1
  linux-image-generic-6.8         6.8.0-64.67~22.04.1
  linux-image-generic-64k-6.8     6.8.0-64.67~22.04.1
  linux-image-generic-64k-hwe-22.04  6.8.0-64.67~22.04.1
  linux-image-generic-hwe-22.04   6.8.0-64.67~22.04.1
  linux-image-oem-22.04           6.8.0-64.67~22.04.1
  linux-image-oem-22.04a          6.8.0-64.67~22.04.1
  linux-image-oem-22.04b          6.8.0-64.67~22.04.1
  linux-image-oem-22.04c          6.8.0-64.67~22.04.1
  linux-image-oem-22.04d          6.8.0-64.67~22.04.1
  linux-image-virtual-6.8         6.8.0-64.67~22.04.1
  linux-image-virtual-hwe-22.04   6.8.0-64.67~22.04.1

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-7653-1

CVE-2024-49887, CVE-2024-50157, CVE-2024-53124, CVE-2024-57924,

CVE-2024-57948, CVE-2024-57949, CVE-2024-57951, CVE-2024-57952,

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-2025-21665, CVE-2025-21666, CVE-2025-21667, CVE-2025-21668,

CVE-2025-21669, CVE-2025-21670, CVE-2025-21672, CVE-2025-21673,

CVE-2025-21674, CVE-2025-21675, CVE-2025-21676, CVE-2025-21678,

CVE-2025-21680, CVE-2025-21681, CVE-2025-21682, CVE-2025-21683,

CVE-2025-21684, CVE-2025-21689, CVE-2025-21690, CVE-2025-21691,

CVE-2025-21692, CVE-2025-21694, CVE-2025-21697, CVE-2025-21699,

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-2025-21943, CVE-2025-22088,

CVE-2025-2312, CVE-2025-37750, CVE-2025-37798, CVE-2025-37890,

CVE-2025-37932, CVE-2025-37974, CVE-2025-37997, CVE-2025-38000,

CVE-2025-38001, CVE-2025-38177

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7653-1

Topics%20covered

Topics Covered

security advisory critical access control threat Ubuntu filesystem

Package Information

https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-64.67~22.04.1

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