RHSA-2026:67723 — Security Advisory

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

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · September 16, 2026

Updated · November 3, 2026

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

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.

Description

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

Security Fix(es):

kernel: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry (CVE-2026-43114)
kernel: rxrpc: Fix potential UAF after skb_unshare() failure (CVE-2026-45998)
kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054)
kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)
kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016)
kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)
kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (CVE-2026-53071)
kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196)
kernel: scsi: target: iscsi: Validate CHAP_R length before base64 decode (CVE-2026-63886)
kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304)
kernel: packet: use consistent hard_header_len in non-ring send paths ()

Bug Fix(es) and Enhancement(s):

RT scheduler livelock caused by missing backport of 94894c9c477e (JIRA:RHEL-244407)

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.