Usn
USN-8636-1: Linux kernel vulnerabilities
Publication date
12 August 2026
Overview
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux-azure-6.17 - Linux kernel for Microsoft Azure cloud systems
- linux-gcp-6.17 - Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-6.17 - Linux hardware enablement (HWE) kernel
- linux-oem-6.17 - Linux kernel for OEM systems
- linux-realtime-6.17 - Linux kernel for Real-time systems
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:
- x86 architecture;
- InfiniBand drivers;
- Media drivers;
- Network drivers;
- Mellanox network drivers;
- Texas Instruments network drivers;
- NVME drivers;
- File systems infrastructure;
- SMB network file system;
- IPv4 networking;
- Network traffic control;
- TCP network protocol;
- Locking primitives;
- Memory management;
- IPv6 networking;
- Multipath TCP;
- Netfilter;
- RxRPC session sockets;
- SCTP protocol;
- SMC sockets
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;
- Media drivers;
- Network drivers;
- Mellanox network drivers;
- Texas Instruments network drivers;
- NVME drivers;
- File systems infrastructure;
- SMB network file system;
- IPv4 networking;
- Network traffic control;
- TCP network protocol;
- Locking primitives;
- Memory management;
- IPv6 networking;
- Multipath TCP;
- Netfilter;
- RxRPC session sockets;
- SCTP protocol;
- SMC sockets
Update instructions
After a standard system update you need to reboot your computer to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
References
- CVE-2026-53359
- CVE-2026-53228
- CVE-2026-53225
- CVE-2026-53212
- CVE-2026-53176
- CVE-2026-53131
- CVE-2026-53086
- CVE-2026-52989
- CVE-2026-52924
- CVE-2026-46331
- CVE-2026-53359
- CVE-2026-53228
- CVE-2026-53225
- CVE-2026-53212
- CVE-2026-53176
- CVE-2026-53131
- CVE-2026-53086
- CVE-2026-52989
- CVE-2026-52924
- CVE-2026-46331
- CVE-2026-46242
- CVE-2026-46137
- CVE-2026-46113
- CVE-2026-43499
- CVE-2026-43465
- CVE-2026-43379
- CVE-2026-43198
- CVE-2026-31705
- CVE-2026-31636
- CVE-2026-31633
- CVE-2026-31589
- CVE-2026-31501
- CVE-2026-31414
- CVE-2026-31405
Related notices
- USN-8633-1
- USN-8631-1
- USN-8620-1
- USN-8620-2
- USN-8620-3
- USN-8620-4
- USN-8619-1
- USN-8618-1
- USN-8610-1
- USN-8609-1
- USN-8633-1
- USN-8631-1
- USN-8620-1
- USN-8620-2
- USN-8620-3
- USN-8620-4
- USN-8619-1
- USN-8618-1
- USN-8610-1
- USN-8609-1
- USN-8608-1
- USN-8607-1
- USN-8606-1
- USN-8603-1
- USN-8597-1
- USN-8596-1
- USN-8595-1
- USN-8595-2
- USN-8595-3
- USN-8593-1
- USN-8576-1
- USN-8576-2
- USN-8575-1
- USN-8575-2
- USN-8575-3
- USN-8574-1
- USN-8574-2
- USN-8574-3
- USN-8569-1
- USN-8568-1
- USN-8567-1
- USN-8566-1
- USN-8507-1
- USN-8489-1
- USN-8488-1
- USN-8488-2
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