SB20260812195 - Improper resource shutdown or release in Linux kernel freescale dpaa2 driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-68331)

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

CVSSv4: 4.8 [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]

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

The vulnerability exists due to improper resource shutdown or release in the dpaa2 Ethernet MAC disconnect path when disconnecting a MAC endpoint device. A local user can repeatedly trigger connect and disconnect operations to cause a denial of service.

The issue leaks a device reference stored in mac->mc_dev on each successful connect that is later disconnected.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d
• https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0
• https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0
• https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf
• https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a