ELSA-2026-68531: Security update for 20 packages

ELSA-2026-68531, released September 18, 2026, fixes 22 CVEs across 20 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

3 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0076

55th percentile

Priority of the 22 CVEs

Patch now 0
                                Urgent 3
                                High 19
                                Routine 0

Fixed package versions

Product	Release	Fixed in
bpftool	ol 8	0:4.18.0-553.164.1.el8_10
kernel	ol 8	0:4.18.0-553.164.1.el8_10
kernel-abi-stablelists	ol 8	0:4.18.0-553.164.1.el8_10
kernel-core	ol 8	0:4.18.0-553.164.1.el8_10
kernel-cross-headers	ol 8	0:4.18.0-553.164.1.el8_10
kernel-debug	ol 8	0:4.18.0-553.164.1.el8_10
kernel-debug-core	ol 8	0:4.18.0-553.164.1.el8_10
kernel-debug-devel	ol 8	0:4.18.0-553.164.1.el8_10
kernel-debug-modules	ol 8	0:4.18.0-553.164.1.el8_10
kernel-debug-modules-extra	ol 8	0:4.18.0-553.164.1.el8_10
kernel-devel	ol 8	0:4.18.0-553.164.1.el8_10
kernel-doc	ol 8	0:4.18.0-553.164.1.el8_10
kernel-headers	ol 8	0:4.18.0-553.164.1.el8_10
kernel-modules	ol 8	0:4.18.0-553.164.1.el8_10
kernel-modules-extra	ol 8	0:4.18.0-553.164.1.el8_10
kernel-tools	ol 8	0:4.18.0-553.164.1.el8_10
kernel-tools-libs	ol 8	0:4.18.0-553.164.1.el8_10
kernel-tools-libs-devel	ol 8	0:4.18.0-553.164.1.el8_10
perf	ol 8	0:4.18.0-553.164.1.el8_10
python3-perf	ol 8	0:4.18.0-553.164.1.el8_10

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-46266	linux: In the Linux kernel, the following vulnerability has been resolved: inet: RAW sockets using IPPROTO_RAW MUST drop in...	9.1	0.0047	None reported
Urgent	CVE-2026-53075	ppp: require CAP_NET_ADMIN in target netns for unattached ioctls	9.8	0.0027	None reported
Urgent	CVE-2026-68143	net: slip: serialize receive against buffer reallocation	9.8	0.0011	None reported
High	CVE-2026-53176	IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN	9.8	0.0076	None reported
High	CVE-2026-63919	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system	8.8	0.0065	None reported
High	CVE-2026-53228	ipv6: sit: reload inner IPv6 header after GSO offloads	9.8	0.0058	None reported
High	CVE-2026-53268	netfilter: conntrack_irc: fix possible out-of-bounds read	8.2	0.0052	None reported
High	CVE-2026-68426	xfrm: fix stale skb->prev after async crypto steals a GSO segment	9.8	0.0050	None reported
High	CVE-2026-43233	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n...	8.2	0.0046	None reported
High	CVE-2026-46306	flow_dissector: do not dissect PPPoE PFC frames	8.1	0.0045	None reported
High	CVE-2026-53131	netfilter: require Ethernet MAC header before using eth_hdr()	9.4	0.0044	None reported
High	CVE-2026-52920	netfilter: xt_policy: fix strict mode inbound policy matching	8.3	0.0030	None reported
High	CVE-2026-53275	ipv6: mcast: Fix use-after-free when processing MLD queries	8.8	0.0026	None reported
High	CVE-2026-31663	xfrm: hold dev ref until after transport_finish NF_HOOK	8.8	0.0022	None reported
High	CVE-2026-63917	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system	8.8	0.0017	None reported
High	CVE-2026-63921	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system	8.8	0.0016	None reported
High	CVE-2026-43339	kernel: In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UaF in addrconf_permanent_...	8.1	0.0016	None reported
High	CVE-2026-53223	kernel: In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue sk...	8.1	0.0014	None reported
High	CVE-2026-64002	kernel: In the Linux kernel, the following vulnerability has been resolved: ipv4: free net->ipv4.sysctl_local_reserved_ports...	8.8	0.0013	None reported
High	CVE-2026-23103	kernel: In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the...	8.8	0.0013	None reported
High	CVE-2026-53239	xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx()	8.8	0.0010	None reported
High	CVE-2026-53192	ALSA: timer: Fix UAF at snd_timer_user_params()	8.8	0.0010	None reported

Also fixes CVE-2026-46266

SUSE-SU-2026:22835-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 16.0
OPENSUSE-SU-2026:21388-1
dtb-aarch64, kernel-64kb, kernel-azure and 10 more on opensuse-leap 16.0
SUSE-SU-2026:2799-1
kernel-livepatch-SLE15-SP7-RT_Update_17 on sles 15.7
SUSE-SU-2026:2800-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
SUSE-SU-2026:3156-1
kernel-default, kernel-default-base, kernel-docs and 4 more on sles 15.6
ALAS2023-2026-1543
bpftool6.12, bpftool6.12-debuginfo, kernel-livepatch-6.12.77-99.140 and 19 more on amzn 2023
RHSA-2026:68532
kernel-rt, kernel-rt-core, kernel-rt-debug and 9 more on RHEL 8
RLSA-2026:68532
kernel-rt on rocky 8

Vendor advisory

https://linux.oracle.com/errata/ELSA-2026-68531.html

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