RLSA-2026:70459: kernel security update

RLSA-2026:70459, released September 24, 2026, fixes 13 CVEs in kernel (version 0:5.14.0-687.50.1.el9_8). One of them is being exploited (CVE-2025-39964); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV

CVEs closed

2 rated Critical

Exploited

CVE-2025-39964

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0161

76th percentile

Priority of the 13 CVEs

Patch now 1
                                Urgent 2
                                High 10
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kernel	rocky 9	0:5.14.0-687.50.1.el9_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2025-39964	crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg	8.8	0.0161	KEVExploited
Urgent	CVE-2026-68391	Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds	9.8	0.0013	None reported
Urgent	CVE-2026-53062	dm cache policy smq: fix missing locks in invalidating cache blocks	9.8	0.0010	None reported
High	CVE-2026-68155	libceph: Reject monmaps advertising zero monitors	8.8	0.0070	None reported
High	CVE-2026-68157	libceph: guard missing CRUSH type name lookup	7.8	0.0070	None reported
High	CVE-2026-68156	libceph: refresh auth->authorizer_buf{,_len} after authorizer update	9.8	0.0069	None reported
High	CVE-2026-68188	Bluetooth: RFCOMM: Fix session UAF in set_termios	8.8	0.0022	None reported
High	CVE-2026-72072	linux: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: macsec: fix use-after-free of metadat...	7.8	0.0017	None reported
High	CVE-2026-63823	keys: Pin request_key_auth payload in instantiate paths	8.8	0.0016	None reported
High	CVE-2026-68293	net/mlx5: Fix MCIA register buffer overflow on 32 dword reads	8.8	0.0014	None reported
High	CVE-2026-45894	iommu/vt-d: Clear Present bit before tearing down PASID entry	8.8	0.0013	None reported
High	CVE-2026-45959	kernel: In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix a crash due to incorrect cleanu...	8.8	0.0013	None reported
High	CVE-2026-74518	mm/hugetlb: fix list corruption in allocate_file_region_entries()	8.8	0.0013	None reported

Also fixes CVE-2025-39964

OPENSUSE-SU-2026:21555-1
dtb-aarch64, kernel-64kb, kernel-azure and 10 more on opensuse-leap 16.0
SUSE-SU-2026:23237-1
kernel-default on sles 16.0
SUSE-SU-2026:23231-1
kernel-64kb, kernel-azure, kernel-default-base and 6 more on sles 16.0
RHSA-2026:71326
kernel on RHEL 10
ALAS2023-2025-1254
bpftool6.12, bpftool6.12-debuginfo, kernel-livepatch-6.12.53-69.119 and 19 more on amzn 2023
ALAS2023-2025-1223
bpftool, bpftool-debuginfo, kernel and 19 more on amzn 2023
ELSA-2025-20719
kernel-uek, kernel-uek-core, kernel-uek-debug and 32 more on ol 10, ol 9
SUSE-SU-2026:4120-1
kernel-livepatch-SLE15-SP7-RT_Update_20 on sles 15.7

Vendor advisory

https://errata.rockylinux.org/RLSA-2026:70459

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