Red Hat Security Advisory

RHSA-2026:44262

OpenShift Container Platform 4.21.26 bug fix and security update

Released 2026-07-28 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat OpenShift Container Platform 4.21 rhcos-aarch64-4.21.9.6.202607221317-0, rhcos-ppc64le-4.21.9.6.202607221317-0, rhcos-s390x-4.21.9.6.202607221317-0 +1

Fixes 2 records

TI-2026-34044 CVE-2026-46323 · GHSA-hf4r-hm8m-w52j

net: gro: don't merge zcopy skbs

LOW 35

In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive() can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00137 Published 2026-06-09 Partial fix · 6.1.176, 6.6.142 +4 CWE-416

TI-2026-31508 CVE-2026-43329 · GHSA-45q4-4828-537r

netfilter: flowtable: strictly check for maximum number of actions

LOW 35

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: * ethernet mangl…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00178 Published 2026-05-08 Partial fix · 5.15.203, 6.1.168 +5 CWE-122