RHSA-2026:94996 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change (CVE-2025-71066)

• kernel: procfs: fix missing RCU protection when reading real_parent in do_task_stat() (CVE-2026-46259)

• kernel: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (CVE-2026-64534)

• kernel: Linux kernel: libceph stack out-of-bounds write via crafted OSDMap (CVE-2026-68159)

• kernel: libceph: refresh auth->authorizer_buf{,_len} after authorizer update (CVE-2026-68156)

• kernel: Linux kernel (libceph): Denial of Service due to malformed monitor maps (CVE-2026-68155)

• kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)

• kernel: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (CVE-2026-74669)

• kernel: ALSA: usx2y: bound the hwdep mmap fault offset (CVE-2026-74641)

• kernel: ipvs: do not propagate one-packet flag to synced conns (CVE-2026-80714)

• kernel: nvme-tcp: fix host memory disclosure on R2T for a read command (CVE-2026-89481)

• kernel: ipv4: free inet_opt and ireq_opt after an RCU grace period (CVE-2026-98432)

• kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability ()

Bug Fix(es) and Enhancement(s):

• Critical Bug Fixes for customer issues with lpfc [rhel-8.6.z] (JIRA:RHEL-286150)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.