---
id: CVE-2026-98078
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ipvs: fix reversed sequence option serialization

  hton_seq() expects the host-order source first and the unaligned
  network-order destination second
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ipvs: fix reversed sequence option serialization

  hton_seq() expects the host-order source first and the unaligned
  network-order destination second. The version 1 sync …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 986a075795339c5ea1122ce9290dfd5504252eb0 <
    e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec
  - >-
    Linux >= 986a075795339c5ea1122ce9290dfd5504252eb0 <
    524599714558da83747c04952d378155c69f5b6b
  - >-
    Linux >= 986a075795339c5ea1122ce9290dfd5504252eb0 <
    de6cc6ec7932bc530f2bb92005dac9123d50659c
  - >-
    Linux >= 986a075795339c5ea1122ce9290dfd5504252eb0 <
    b04578b74f2d3755548fe9e829e3b2a6c6f966a1
  - Linux 2.6.39
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T11:17:37.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98078'
references:
  - url: 'https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T11:06:38.837Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

ipvs: fix reversed sequence option serialization

hton_seq() expects the host-order source first and the unaligned
network-order destination second. The version 1 sync sender passes these
arguments in reverse for both sequence blocks. This leaves 24 bytes of the
kmalloc-backed message unwritten. It may disclose stale heap data and
replace the live connection sequence state with values read from the
buffer.

Pass the connection sequence state as the source and the message payload as
the destination for both blocks.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.