Ubuntu USN · USN-8631-2

Linux kernel (Oracle) vulnerabilities

Published: Thu, 13 Aug 2026 17:54

CVE-2025-27558CVE-2026-31414CVE-2026-53176CVE-2026-53215CVE-2026-53225CVE-2026-52989CVE-2026-53359CVE-2026-46266CVE-2026-52924CVE-2026-46331CVE-2026-43198CVE-2026-43499CVE-2026-53212CVE-2026-31705CVE-2026-43378CVE-2026-53086CVE-2026-31448CVE-2026-53228

Summary

Several security issues were fixed in the Linux kernel.

Details

Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this issue to inject packets. (CVE-2025-27558) 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - NVME drivers; - Ext4 file system; - SMB network file system; - IPv4 networking; - Network traffic control; - TCP network protocol; - Locking primitives; - IPv6 networking; - Multipath TCP; - Netfilter; - SCTP protocol; - SMC sockets; (CVE-2026-31414, CVE-2026-31448, CVE-2026-31705, CVE-2026-43198, CVE-2026-43378, CVE-2026-43499, CVE-2026-46266, CVE-2026-46331, CVE-2026-52924, CVE-2026-52989, CVE-2026-53086, CVE-2026-53176, CVE-2026-53212, CVE-2026-53215, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu jammy

linux-oracle→5.15.0-1110.116apt_upgrade
Standard apt upgrade. Install 5.15.0-1110.116 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-oracle
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-buildinfo-5.15.0-1110-oracle→5.15.0-1110.116apt_upgrade
Standard apt upgrade. Install 5.15.0-1110.116 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-buildinfo-5.15.0-1110-oracle
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-headers-5.15.0-1110-oracle→5.15.0-1110.116kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-headers-5.15.0-1110-oracle
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-headers-oracle-5.15→5.15.0.1110.106kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-headers-oracle-5.15
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-headers-oracle-lts-22.04→5.15.0.1110.106kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-headers-oracle-lts-22.04
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-image-5.15.0-1110-oracle→5.15.0-1110.116kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-image-5.15.0-1110-oracle
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-image-oracle-5.15→5.15.0.1110.106kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-image-oracle-5.15
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-image-oracle-lts-22.04→5.15.0.1110.106kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-image-oracle-lts-22.04
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-image-unsigned-5.15.0-1110-oracle→5.15.0-1110.116kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-image-unsigned-5.15.0-1110-oracle
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-modules-5.15.0-1110-oracle→5.15.0-1110.116kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-modules-5.15.0-1110-oracle
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-modules-extra-5.15.0-1110-oracle→5.15.0-1110.116kernel_reboot
Kernel package — apt-upgrade then REBOOT to load the patched kernel.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-modules-extra-5.15.0-1110-oracle
sudo reboot
```
Reboot is required. ~30-60s downtime; containers self-restart.
linux-oracle-5.15→5.15.0.1110.106apt_upgrade
Standard apt upgrade. Install 5.15.0.1110.106 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-oracle-5.15
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-oracle-headers-5.15.0-1110→5.15.0-1110.116apt_upgrade
Standard apt upgrade. Install 5.15.0-1110.116 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-oracle-headers-5.15.0-1110
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-oracle-lts-22.04→5.15.0.1110.106apt_upgrade
Standard apt upgrade. Install 5.15.0.1110.106 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-oracle-lts-22.04
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-oracle-tools-5.15.0-1110→5.15.0-1110.116apt_upgrade
Standard apt upgrade. Install 5.15.0-1110.116 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-oracle-tools-5.15.0-1110
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-tools-5.15.0-1110-oracle→5.15.0-1110.116apt_upgrade
Standard apt upgrade. Install 5.15.0-1110.116 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-tools-5.15.0-1110-oracle
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-tools-oracle-5.15→5.15.0.1110.106apt_upgrade
Standard apt upgrade. Install 5.15.0.1110.106 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-tools-oracle-5.15
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
linux-tools-oracle-lts-22.04→5.15.0.1110.106apt_upgrade
Standard apt upgrade. Install 5.15.0.1110.106 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y linux-tools-oracle-lts-22.04
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Are YOU affected by USN-8631-2?

5-second check on your actual server. Reads /etc/os-release, uname -r, and dpkg-query; matches against the live USN + Debian Security Tracker feeds; tells you whether USN-8631-2 (and any other live CVE) applies. Anonymous, no signup.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan Read the bash source first

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