SB2026092534 - Race condition in Linux kernel net driver

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-97410)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local user to corrupt a kernel list.

The vulnerability exists due to improper synchronization in drop_netconsole_target() when removing a configfs target concurrently with cleanup processing after the underlying interface is unregistered. A local user can remove a configfs target while cleanup processing iterates the target cleanup list to corrupt a kernel list.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/84592ee22f7d1583ce33aa733411ff36c7a1c44c
• https://git.kernel.org/stable/c/91aeb87f052367a5a2743cc93777dfb4386f2f14
• https://git.kernel.org/stable/c/fe8e6c0a2f28bdab14cdf7eff4dd9755d3793007