SB20260928168 - Improper Check for Unusual or Exceptional Conditions in Linux kernel netronome nfp driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-98028)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/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 error handling in the nfp_net_fs_add() rule replacement logic when reprogramming an existing rule after hardware programming fails. A local user can trigger a failed rule reprogramming operation to cause a denial of service.

The affected ethtool rule-list operation can subsequently return a permanent -EMSGSIZE error because the rule list and rule counter are not resynchronized.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/108bb2142e3a12c9ad625ad662973127a113ddc6
• https://git.kernel.org/stable/c/552e528a7d85cbe088b2ae4f78194713975b46cf
• https://git.kernel.org/stable/c/603b70093f729f52a37544b48679903cad834856
• https://git.kernel.org/stable/c/edaec279f59f801a05b751df475ed71a0a68c88a