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OpenAdvisories
High USN-8361-2 1 CVE

linux-fips vulnerability

Published Jun 4, 2026 · Updated Oct 5, 2026

Ecosystem: Ubuntu

Summary

A security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystem:
- Packet sockets;
(CVE-2026-31504)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro FIPS-updates 16.04 LTS Pro:FIPS-updates:16.04:LTS linux-fips 4.4.0-1125.132

Vulnerabilities 1

  • High 7.8
    CVE-2026-31504

    net: fix fanout UAF in packet_release() via NETDEV_UP race

    In the Linux kernel, the following vulnerability has been resolved: net: fix fanout UAF in packet_release() via NETDEV_UP race `packet_release()` has a race window where `NETDEV_UP` can re-register a socket into a fanout group's `arr[]` array. The re-registra…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • report
    https://ubuntu.com/security/CVE-2026-31504