SB20261015153 - Improper Interaction Between Multiple Correctly-Behaving Entities in Linux kernel psp

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Interaction Between Multiple Correctly-Behaving Entities (CVE-ID: CVE-2026-98274)

CWE-ID: CWE-435 - Improper Interaction Between Multiple Correctly-Behaving Entities

CVSSv4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause conflicts in socket decryption state and transmit validation.

The vulnerability exists due to missing mutual exclusion between PSP and TLS ULP in the Linux kernel socket handling when both features are used on the same socket. A local user can configure these features together to cause conflicts in socket decryption state and transmit validation.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/a13cca5ba5375f13cbdab545abfb5e288bef3f78
• https://git.kernel.org/stable/c/a41f24c612c3f5139a3143307eb85bbcf1bd4d07
• https://git.kernel.org/stable/c/c8c8c18862337c469e325c207601de3279847809