USN-8310-1: Linux kernel (Azure) vulnerabilities
It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)
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: - S390 architecture; - Cryptographic API; - GPU drivers; - Ethernet bonding driver; - Microsoft Azure Network Adapter (MANA) driver; - Network file system (NFS) server daemon; - Distributed Switch Architecture; - Netfilter; - Control group (cgroup); - Kernel kexec() syscall; - Memory management; - MAC80211 subsystem; - Multipath TCP; - Packet sockets; - TLS protocol; - Unix domain sockets; (CVE-2025-71088, CVE-2025-71090, CVE-2025-71127, CVE-2025-71134, CVE-2025-71139, CVE-2025-71141, CVE-2025-71142, CVE-2025-71144, CVE-2025-71152, CVE-2025-71155, CVE-2026-23274, CVE-2026-23351, CVE-2026-23394, CVE-2026-23454, CVE-2026-31419, CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078, CVE-2026-43276)
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/linux-image-6.17.0-1015-azureto a version that resolves this vulnerability.Fixed in 6.17.0-1015.15 - Upgrade
Upgrade
ubuntu/linux-image-azureto a version that resolves this vulnerability.Fixed in 6.17.0-1015.15 - Upgrade
Upgrade
ubuntu/linux-image-azure-6.17to a version that resolves this vulnerability.Fixed in 6.17.0-1015.15 - Upgrade
Upgrade
ubuntu/linux-image-6.17.0-1015-azureto a version that resolves this vulnerability.Fixed in 6.17.0-1015.15~24.04.1 - Upgrade
Upgrade
ubuntu/linux-image-azureto a version that resolves this vulnerability.Fixed in 6.17.0-1015.15~24.04.1 - Upgrade
Upgrade
ubuntu/linux-image-azure-6.17to a version that resolves this vulnerability.Fixed in 6.17.0-1015.15~24.04.1 - Upgrade
Upgrade
ubuntu/linux-azure-6.17to a version that resolves this vulnerability.Fixed in 6.17.0-1015.15~24.04.1 - Upgrade
Upgrade
ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 6.17.0-1015.15 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch USN-8310-1
Event History
Child vulnerabilities
Contains the following vulnerabilities.
- CVE-2026-43276
- CVE-2026-43078
- CVE-2026-43077
- CVE-2026-43033
- CVE-2026-31533
- CVE-2026-31504
- CVE-2026-31431
- CVE-2026-31419
- CVE-2026-23454
- CVE-2026-23394
- CVE-2025-71088
- CVE-2025-71090
- CVE-2025-71127
- CVE-2025-71134
- CVE-2025-71139
- CVE-2025-71141
- CVE-2025-71142
- CVE-2025-71144
- CVE-2025-71152
- CVE-2025-71155
- CVE-2026-23274
- CVE-2026-23351
- UBUNTU-CVE-2025-71088
- UBUNTU-CVE-2025-71090
- UBUNTU-CVE-2025-71127
- UBUNTU-CVE-2025-71134
- UBUNTU-CVE-2025-71139
- UBUNTU-CVE-2025-71141
- UBUNTU-CVE-2025-71142
- UBUNTU-CVE-2025-71144
- UBUNTU-CVE-2025-71152
- UBUNTU-CVE-2025-71155
- UBUNTU-CVE-2026-23274
- UBUNTU-CVE-2026-23351
- UBUNTU-CVE-2026-23394
- UBUNTU-CVE-2026-23454
- UBUNTU-CVE-2026-31419
- UBUNTU-CVE-2026-31431
- UBUNTU-CVE-2026-31504
- UBUNTU-CVE-2026-31533
- UBUNTU-CVE-2026-43033
- UBUNTU-CVE-2026-43077
- UBUNTU-CVE-2026-43078
- UBUNTU-CVE-2026-43276
Frequently Asked Questions
What is the severity of USN-8310-1?
The severity of USN-8310-1 is rated at 58, indicating a moderate risk to affected systems.
How do I fix USN-8310-1?
To fix USN-8310-1, update the Linux kernel (Azure) package to the latest version available in your Ubuntu repository.
What vulnerabilities are addressed in USN-8310-1?
USN-8310-1 addresses vulnerabilities identified as CVE-2026-43276, CVE-2026-43078, and CVE-2026-43077.
Which systems are affected by USN-8310-1?
USN-8310-1 affects systems running the Ubuntu Linux kernel (Azure) version.
What should I do if I cannot update due to dependency issues related to USN-8310-1?
If you encounter dependency issues while updating for USN-8310-1, consider resolving these dependencies or consulting the community for support.