USN-8643-1

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:

Network drivers;
Open vSwitch;
SCTP protocol; (CVE-2026-53224, CVE-2026-53246, CVE-2026-53247, CVE-2026-64531)

Affected Packages(13 packages)

linux-gcp-6.8

Ubuntu 22.04 LTS

Fixed in:

6.8.0-1066.74~22.04.1

linux

Ubuntu 24.04 LTS

Fixed in:

6.8.0-138.138

linux-aws

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1063.66

linux-azure

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1065.73

linux-gcp

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1066.74

linux-gkeop

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1048.52

linux-oracle

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1060.63

linux-xilinx

Ubuntu 24.04 LTS

Fixed in:

6.8.0-1035.36

linux-aws-fips

Ubuntu Pro FIPS-updates 24.04 LTS

Fixed in:

6.8.0-1063.66+fips1

linux-fips

Ubuntu Pro FIPS-updates 24.04 LTS

Fixed in:

6.8.0-138.138+fips1

References

REPORT

https://ubuntu.com/security/CVE-2026-53224

REPORT

https://ubuntu.com/security/CVE-2026-53246

REPORT

https://ubuntu.com/security/CVE-2026-53247

REPORT

https://ubuntu.com/security/CVE-2026-64531

ADVISORY

https://ubuntu.com/security/notices/USN-8643-1