RHSA-2026:27353 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. 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: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)

• kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)

• kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)

• kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)

• kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)

• kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)

• kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)

• kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)

Bug Fix(es) and Enhancement(s):

• RHEL8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:RHEL-178520)

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.