Security
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CVE-2026-98078

MEDIUMCVSS 4.4
Description

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.

Timeline
Published:September 25th, 2026 11:17 AM
Last modified:October 19th, 2026 10:18 AM
CVSS Scoring

CVSS v3: 4.4 (MEDIUM)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Affected Software
From NVD CPE configuration data

Vendors

linux

Products

linux_kernel
Weaknesses (CWE)

Source: NIST NVD · Data may lag official sources by up to one minute