USN-8015-4

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:

Cryptographic API;
SMB network file system;
io_uring subsystem; (CVE-2025-38561, CVE-2025-39698, CVE-2025-40019)

Affected Packages

linux-aws-6.8

Ubuntu 22.04 LTS

Fixed in:

6.8.0-1045.47~22.04.1

linux-gcp-6.8

Ubuntu 22.04 LTS

Fixed in:

6.8.0-1046.49~22.04.1

linux-ibm-6.8

Ubuntu 22.04 LTS

Fixed in:

6.8.0-1043.43~22.04.1

linux-lowlatency-hwe-6.8

Ubuntu 22.04 LTS

Fixed in:

6.8.0-94.96.1~22.04.1

linux-aws

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1045.47

linux-gcp

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1046.49

linux-ibm

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1043.43

References

REPORT

https://ubuntu.com/security/CVE-2025-38561

REPORT

https://ubuntu.com/security/CVE-2025-39698

REPORT

https://ubuntu.com/security/CVE-2025-40019

ADVISORY

https://ubuntu.com/security/notices/USN-8015-4