SB2026092511 - Improper control of a resource through its lifetime in Linux kernel freescale dpaa2 driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-97434)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a local privileged user to cause active NAPI instances to be deleted.

The vulnerability exists due to improper resource lifecycle management in the dpaa2-switch device removal path when removing a DPSW device. A local privileged user can trigger the device removal path to cause active NAPI instances to be deleted.

All NAPI instances are attached to the first switch port's net_device but are shared by all switch ports.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/569df157eb874cb3b50554d73b89f31599397b42
• https://git.kernel.org/stable/c/6518f87771c8833e587bd9881346fa759651c2ae
• https://git.kernel.org/stable/c/e23d7c8c1d4ba435c457d7ffb2669175ec819b07