SB20260928118 - Race condition in Linux kernel rds

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-98069)

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

CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper synchronization in rds_conn_shutdown() in the RDS networking subsystem when tearing down an RDS connection path. A remote attacker can race transmission or receive-refill operations with connection teardown to cause a denial of service.

Exploitation occurs on weakly ordered architectures.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/1fe627e5db5c3f53a9f9f9c8a66671755d306955
• https://git.kernel.org/stable/c/7febb113795d5de5b690b208f4b0e64a5fad1201
• https://git.kernel.org/stable/c/813f3582ac7ae9f60f917937d54660e0952d5f2d
• https://git.kernel.org/stable/c/900e96c9749a06833801f60c393aa1d405ea226c