RHSA-2026:27708HighCVSS 7.8

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published
June 22, 2026
Last Modified
July 6, 2026

🔗 CVE IDs covered (12)

CVE-2026-43116 →CVE-2026-43303 →CVE-2026-45898 →CVE-2026-46323 →CVE-2026-43158 →CVE-2026-46125 →CVE-2026-46166 →CVE-2026-46243 →CVE-2026-46331 →CVE-2025-40064 →CVE-2025-40168 →CVE-2026-23136 →

📋 Description

CVE-2025-40064 — kernel: smc: Fix use-after-free in __pnet_find_base_ndev() CVE-2025-40168 — kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() CVE-2026-23136 — kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state CVE-2026-43116 — kernel: netfilter: ctnetlink: ensure safe access to master conntrack CVE-2026-43158 — kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks CVE-2026-43303 — kernel: mm/page_alloc: clear page->private in free_pages_prepare() CVE-2026-45898 — kernel: RDMA/iwcm: Fix workqueue list corruption by removing work_list CVE-2026-46125 — kernel: wifi: mac80211: remove station if connection prep fails CVE-2026-46166 — kernel: wifi: mac80211: use safe list iteration in radar detect work CVE-2026-46243 — kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions CVE-2026-46323 — kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs CVE-2026-46331 — kernel: net/sched: act_pedit: extend the writable skb range per key

🔗 References (15)