Summary
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
- Cryptographic API
- InfiniBand drivers
- Media drivers
- STMicroelectronics network drivers
- Network drivers
- Ext4 file system
- IPv4 networking
- TCP network protocol
- Locking primitives
- Ceph Core library
- IPv6 networking
- Multipath TCP
- Netfilter
- SCTP protocol
- SMC sockets; (CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649, CVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982, CVE-2026-52986, CVE-2026-53006, CVE-2026-53176, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)
Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
This update corrects flaws in the following subsystems:
- x86 architecture
- Cryptographic API
- InfiniBand drivers
- Media drivers
- STMicroelectronics network drivers
- Network drivers
- Ext4 file system
- IPv4 networking
- TCP network protocol
- Locking primitives
- Ceph Core library
- IPv6 networking
- Multipath TCP
- Netfilter
- SCTP protocol
- SMC sockets; (CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649, CVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982, CVE-2026-52986, CVE-2026-53006, CVE-2026-53176, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)
Updates
Published by UbuntuThe publication date reported by the vendor.
Added to SecurityAlertWe collected the advisory from the official source.
Confirmed at the sourceOur collector saw this advisory during a later source check.