SB20260928111 - Function Call with Incorrectly Specified Arguments in Linux kernel netfilter ipvs

Description

This security bulletin contains information about 1 vulnerability.

1) Function Call with Incorrectly Specified Arguments (CVE-ID: CVE-2026-98078)

CWE-ID: CWE-628 - Function Call with Incorrectly Specified Arguments

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to disclose stale heap data and corrupt connection sequence state.

The vulnerability exists due to incorrect function call argument ordering in the version 1 IPVS synchronization sender when serializing connection sequence data. A remote attacker can send traffic that causes connection sequence data to be synchronized to disclose stale heap data and corrupt connection sequence state.

Only connections with sequence-state flags set are affected.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b
• https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1
• https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c
• https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec