SB20260325122 - Improper Resource Shutdown or Release in Linux kernel nfc nci

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Resource Shutdown or Release (CVE-ID: CVE-2026-23330)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource management in the NFC subsystem when closing a device. A local user can trigger a memory leak by closing an NFC device while a data exchange is pending, leading to resource exhaustion over time.

Memory is not properly released when a pending data exchange is left uncompleted during device closure, resulting in a gradual loss of available memory.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/66083581945bd5b8e99fe49b5aeb83d03f62d053
• https://git.kernel.org/stable/c/91ff0d8c3464da7f0c43da38c195e60b660128bf
• https://git.kernel.org/stable/c/d05f55d68ebdebb2b0a8480d766eaae88c8c92de