RHSA-2026:65711 — Security Advisory

Red Hat Security Advisory: kernel security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · September 9, 2026

Updated · November 3, 2026

Topic

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 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: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)
kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)
kernel: ice: fix double-free of tx_buf skb (CVE-2026-53009)
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: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191)
kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges (CVE-2026-17523)
kernel: packet: use consistent hard_header_len in non-ring send paths ()

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.