Red Hat Security Advisory

RHSA-2026:27719

kernel security update

Released 2026-06-22 · Red Hat rating Critical · View on Red Hat →

Fixed in

Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) kernel-2.6.32-754.61.1.el6, kernel-abi-whitelists-2.6.32-754.61.1.el6, kernel-debug-2.6.32-754.61.1.el6 +7
Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) python-perf-2.6.32-754.61.1.el6

Fixes 2 records

TI-2026-33964 CVE-2026-46243 · GHSA-3mg7-pfmq-9qfv

smb: client: reject userspace cifs.spnego descriptions

HIGH 69

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upca…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00413 Published 2026-06-01 Fixed in 5.10.258, 5.15.209 +6 CWE-20

TI-2026-31217 CVE-2026-43037 · GHSA-p2wf-qj6m-x5fg

ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() Oskar Kjos reported the following problem.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00688 Published 2026-05-01 Partial fix · 5.10.253, 5.15.203 +6 CWE-121