Issued at: 2026-09-24
Updated at: 2026-09-24
Advisory content derived from Red Hat RHSA-2026:70459, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: kernel security, bug fix, and enhancement update
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964)
* kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894)
* kernel: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree (CVE-2026-45959)
* kernel: dm cache policy smq: fix missing locks in invalidating cache blocks (CVE-2026-53062)
* kernel: keys: Pin request_key_auth payload in instantiate paths (CVE-2026-63823)
* kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293)
* kernel: Linux kernel: libceph null pointer dereference leads to denial of service (CVE-2026-68157)
* kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios (CVE-2026-68188)
* 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: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds (CVE-2026-68391)
* kernel: net/mlx5e: macsec: fix use-after-free of metadata_dst on RX SC delete (CVE-2026-72072)
* kernel: mm/hugetlb: fix list corruption in allocate_file_region_entries() (CVE-2026-74518)
Bug Fix(es) and Enhancement(s):
* [Intel 9.8 FEAT] ice: Driver Update [rhel-9.8.z] (JIRA:Rocky Linux-213003)
* Rocky Linux 9.8: Multiuser Kerberized DFS shares fail to mount with UID mount option [rhel-9.8.z] (JIRA:Rocky Linux-254108)
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.