USN-7797-2: Linux kernel vulnerabilities

Q: Which systems are covered by this update?

The affected software list includes Ubuntu kernel packages linux-image-4.4.0-1148-aws, linux-image-4.4.0-273-generic, linux-image-4.4.0-273-lowlatency, linux-image-aws, linux-aws, and linux-lts-xenial.

Q: Which kernel components contain corrected security issues?

The update addresses issues in the Virtio block driver, media and network drivers, framebuffer layer, BTRFS and Ext4 file systems, the NFS server daemon, packet sockets, and the VMware vSockets driver.

Q: How could these issues affect a vulnerable system?

An attacker could possibly use one or more of the flaws to compromise the system.

Published Oct 2, 2025

Updated

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:

Affected Software

10 affected componentsFixes available

All of the following

ubuntu/linux-image-4.4.0-1148-aws<Ubuntu Pro

Ubuntu Pro

Ubuntu Ubuntu=14.04

All of the following

ubuntu/linux-image-4.4.0-273-generic<Ubuntu Pro

Ubuntu Pro

Ubuntu Ubuntu=14.04

All of the following

ubuntu/linux-image-4.4.0-273-lowlatency<Ubuntu Pro

Ubuntu Pro

Ubuntu Ubuntu=14.04

All of the following

ubuntu/linux-image-aws<Ubuntu Pro

Ubuntu Pro

Ubuntu Ubuntu=14.04

ubuntu/linux-aws<4.4.0-1148.154

4.4.0-1148.154

ubuntu/linux-lts-xenial<4.4.0-273.307~14.04.1

4.4.0-273.307~14.04.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-image-4.4.0-1148-aws to a version that resolves this vulnerability.
Fixed in Ubuntu Pro
Upgrade
Upgrade ubuntu/linux-image-4.4.0-273-generic to a version that resolves this vulnerability.
Fixed in Ubuntu Pro
Upgrade
Upgrade ubuntu/linux-image-4.4.0-273-lowlatency to a version that resolves this vulnerability.
Fixed in Ubuntu Pro
Upgrade
Upgrade ubuntu/linux-image-aws to a version that resolves this vulnerability.
Fixed in Ubuntu Pro
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.4.0-1148.154
Upgrade
Upgrade ubuntu/linux-lts-xenial to a version that resolves this vulnerability.
Fixed in 4.4.0-273.307~14.04.1
Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch USN-7797-2

Event History

Oct 2, 2025

Advisory Published

via Ubuntu·12:00 AM

Data Sourced

via Ubuntu·12:00 AM

DescriptionAffected Software

Advisory Published

via OSV·03:05 PM

Data Sourced

via OSV·03:05 PM

DescriptionAffected Software

Frequently Asked Questions

Which systems are covered by this update?

The affected software list includes Ubuntu kernel packages linux-image-4.4.0-1148-aws, linux-image-4.4.0-273-generic, linux-image-4.4.0-273-lowlatency, linux-image-aws, linux-aws, and linux-lts-xenial.

Which kernel components contain corrected security issues?

The update addresses issues in the Virtio block driver, media and network drivers, framebuffer layer, BTRFS and Ext4 file systems, the NFS server daemon, packet sockets, and the VMware vSockets driver.

How could these issues affect a vulnerable system?

An attacker could possibly use one or more of the flaws to compromise the system.

USN-7797-2: Linux kernel vulnerabilities

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

Which systems are covered by this update?

Which kernel components contain corrected security issues?

How could these issues affect a vulnerable system?

Company

Resources

Contact

Frequently Asked Questions

Which systems are covered by this update?

Which kernel components contain corrected security issues?

How could these issues affect a vulnerable system?