CVE-2026-45850

ipvs: skip ipv6 extension headers for csum checks

MEDIUM

5.5

CVSS Score

Published: May 27, 2026 at 12:15 PM UTC

Updated: October 15, 2026 at 02:19 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: ipvs: skip ipv6 extension headers for csum checks Protocol checksum validation fails for IPv6 if there are extension headers before the protocol header. iph->len already contains its offset, so use it to fix the problem.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.28 ≤ v < 5.10.2595.11 ≤ v < 5.15.2105.16 ≤ v < 6.1.1766.13 ≤ v < 6.18.366.19 ≤ v < 6.19.46.2 ≤ v < 6.6.1436.7 ≤ v < 6.12.940bbdd42b7efa66685b6d74701bcde3a596a3a59d2.6.28

Vendor states this is fixed in 05cfe9863ef049d98141dc2969eefde72fb07625 (fixed)

Vendor states this is fixed in 0bf92a90bf05ecafe52e92d5bc15a585021a64ac (fixed)

Vendor states this is fixed in 54add3b7d3c154ca89ef5bac2582b0ed1a3a15d5 (fixed)

Vendor states this is fixed in 768f665f3685b455ed686370ed7ccb852a125a3b (fixed)

Vendor states this is fixed in 9aa7edc1347b98774e5167ca34e5b8aa6083bde7 (fixed)

Vendor states this is fixed in a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4 (fixed)

Vendor states this is fixed in cdce1e797addab72393c0dfee31aaca41ef7d937 (fixed)

Vendor states this is fixed in d643c1ec80b70508f54dac12179e36920e2c00de (fixed)

Vendor states this is fixed in 2.6.28 (unaffected)

Vendor states this is fixed in 5.10.259 (unaffected)

Vendor states this is fixed in 5.15.210 (unaffected)

Vendor states this is fixed in 6.1.176 (unaffected)