RHSA-2026:76739: Security update for 72 packages

RHSA-2026:76739, released October 9, 2026, fixes 38 CVEs across 72 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

2 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0071

53rd percentile

Priority of the 38 CVEs

Patch now 0
                                Urgent 2
                                High 36
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kernel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug-devel-matched	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-debug-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-devel-matched	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-64k-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-abi-stablelists	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-devel-matched	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-debug-uki-virt	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-devel-matched	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-doc	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-debug	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-debug-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-debug-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-debug-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-debug-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-debug-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-64k-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-debug	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-debug-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-debug-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-debug-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-debug-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-debug-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-rt-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-tools	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-tools-libs	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-tools-libs-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-uki-virt	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-uki-virt-addons	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump-devel	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump-devel-matched	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump-modules	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump-modules-core	RHEL 9	0:5.14.0-687.55.1.el9_8
kernel-zfcpdump-modules-extra	RHEL 9	0:5.14.0-687.55.1.el9_8
libperf	RHEL 9	0:5.14.0-687.55.1.el9_8
perf	RHEL 9	0:5.14.0-687.55.1.el9_8
python3-perf	RHEL 9	0:5.14.0-687.55.1.el9_8
rtla	RHEL 9	0:5.14.0-687.55.1.el9_8
rv	RHEL 9	0:5.14.0-687.55.1.el9_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-89972	nvme: add missing SRCU grace period in error path	9.8	0.0071	None reported
Urgent	CVE-2026-63984	kernel-uek-debug: [5.15.0-323.211.3.3] - Revert 'x86/alternatives: Add alt_instr.flags' (Harshit Mogalapalli) [Orabug: 39853924] [5.1...	9.8	0.0051	None reported
High	CVE-2026-63922	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: t...	9.8	0.0071	None reported
High	CVE-2026-63924	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: t...	9.8	0.0071	None reported
High	CVE-2026-52986	netfilter: nf_conntrack_sip: don't use simple_strtoul	9.8	0.0063	None reported
High	CVE-2026-72099	kernel-64k-debug-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: t...	7.8	0.0055	None reported
High	CVE-2026-74746	netfilter: flowtable: publish GC-visible tuple last	9.8	0.0054	None reported
High	CVE-2026-63993	kernel: In the Linux kernel, the following vulnerability has been resolved: vxlan: do not reuse cached ip_hdr() value after s...	9.8	0.0051	None reported
High	CVE-2026-63994	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system	9.8	0.0051	None reported
High	CVE-2026-74669	ipvs: clear IPv4 options after rebasing tunnel ICMP errors	9.8	0.0051	None reported
High	CVE-2026-63992	kernel-rt-64k-debug-modules-core: The kernel packages contain the Linux kernel, the core of any Linux operating system	9.1	0.0051	None reported
High	CVE-2026-97417	netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack()	8.8	0.0049	None reported
High	CVE-2026-64385	smb: client: fix double-free in SMB2_ioctl() replay	9.8	0.0046	None reported
High	CVE-2026-89481	nvme-tcp: fix host memory disclosure on R2T for a read command	8.8	0.0043	None reported
High	CVE-2026-89480	linux: In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: reject a read that transferred too few...	8.8	0.0043	None reported
High	CVE-2026-53049	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: t...	9.8	0.0039	None reported
High	CVE-2026-74569	netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp()	9.8	0.0039	None reported
High	CVE-2026-53357	Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del()	8.0	0.0033	None reported
High	CVE-2026-64557	linux: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2cap_so...	8.8	0.0029	None reported
High	CVE-2026-46275	Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths	7.8	0.0023	None reported
High	CVE-2026-80792	ipv6: fix use-after-free in ip6_finish_output2()	8.1	0.0020	None reported
High	CVE-2026-45861	gfs2: Fix slab-use-after-free in qd_put	8.8	0.0019	None reported
High	CVE-2026-72289	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: t...	9.3	0.0019	None reported
High	CVE-2026-72255	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: t...	8.8	0.0018	None reported
High	CVE-2025-40149	tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().	8.8	0.0017	None reported

Also fixes CVE-2026-89972

ELSA-2026-76738
kernel, kernel-abi-stablelists, kernel-core and 27 more on ol 10
ALSA-2026:76738
kernel, kernel-64k, kernel-64k-core and 72 more on almalinux 10
RHSA-2026:76738
kernel on RHEL 10
ELSA-2026-500572
kernel-uek, kernel-uek-core, kernel-uek-debug and 32 more on ol 10, ol 9
ELSA-2026-76739
kernel, kernel-abi-stablelists, kernel-core and 26 more on ol 9
RLSA-2026:75746
kernel-rt on rocky 8
RLSA-2026:75747
kernel on rocky 8
RHSA-2026:75746
kernel-rt, kernel-rt-core, kernel-rt-debug and 9 more on RHEL 8

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:76739

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