RHEL 9 : kernel (RHSA-2026:98047)

critical Nessus Plugin ID 378534

Synopsis

The remote Red Hat host is missing one or more security updates for kernel.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:98047 advisory.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: netfilter: nf_queue: hold bridge skb->dev while queued (CVE-2026-52912)

* kernel: Bluetooth: RFCOMM: validate skb length in MCC handlers (CVE-2026-53254)

* kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829)

* kernel: scsi: scsi_transport_fc: Widen FPIN pname walker counter to u32 (CVE-2026-63889)

* kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (CVE-2026-63992)

* kernel: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check (CVE-2026-63913)

* kernel: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() (CVE-2026-63994)

* kernel: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CVE-2026-64320)

* kernel: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (CVE-2026-64534)

* kernel: Linux kernel: libceph stack out-of-bounds write via crafted OSDMap (CVE-2026-68159)

* kernel: Linux kernel: libceph null pointer dereference leads to denial of service (CVE-2026-68157)

* 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: vxlan: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-68432)

* kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)

* kernel: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-72052)

* kernel: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst (CVE-2026-72255)

* kernel: netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() (CVE-2026-74569)

* kernel: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (CVE-2026-74669)

* kernel: ipvs: do not propagate one-packet flag to synced conns (CVE-2026-80714)

* kernel: nvme-tcp: fix host memory disclosure on R2T for a read command (CVE-2026-89481)

* kernel: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() (CVE-2026-97417)

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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kernel package based on the guidance in RHSA-2026:98047.

Plugin Details

Severity: Critical

ID: 378534

File Name: redhat-RHSA-2026-98047.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/10/2026

Updated: 11/10/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 98.94

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-80714

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_e4s:9.4, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-64k-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-64k-debug, p-cpe:/a:redhat:enterprise_linux:kernel-64k-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-64k-devel, p-cpe:/a:redhat:enterprise_linux:kernel-64k-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-64k-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-64k-modules, p-cpe:/a:redhat:enterprise_linux:kernel-64k, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug-uki-virt, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-uki-virt, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel-matched, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python3-perf, p-cpe:/a:redhat:enterprise_linux:rtla, p-cpe:/a:redhat:enterprise_linux:rv

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2026

Vulnerability Publication Date: 6/3/2026

Reference Information

CVE: CVE-2026-52912, CVE-2026-53254, CVE-2026-63829, CVE-2026-63889, CVE-2026-63913, CVE-2026-63992, CVE-2026-63994, CVE-2026-64320, CVE-2026-64534, CVE-2026-68155, CVE-2026-68156, CVE-2026-68157, CVE-2026-68159, CVE-2026-68432, CVE-2026-68476, CVE-2026-72052, CVE-2026-72255, CVE-2026-74569, CVE-2026-74669, CVE-2026-80714, CVE-2026-89481, CVE-2026-97417

CWE: 125, 1284, 201, 266, 358, 476, 617, 787, 805, 825, 835, 843, 911

RHSA: 2026:98047

Detections

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