RHEL 9 : kernel (RHSA-2026:97873)

high Nessus Plugin ID 378732

Synopsis

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

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:97873 advisory.

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

Security Fix(es):

* kernel: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets (CVE-2025-22063)

* kernel: can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)

* kernel: calipso: Don't call calipso functions for AF_INET sk. (CVE-2025-38147)

* kernel: thermal: core: Fix thermal zone device registration error path (CVE-2026-43332)

* kernel: sctp: stream: fully roll back denied add-stream state (CVE-2026-52929)

* kernel: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN (CVE-2026-53176)

* kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle (CVE-2026-53264)

* kernel: vsock/virtio: fix zerocopy completion for multi-skb sends (CVE-2026-53365)

* kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899)

* kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032)

* kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962)

* kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)

* kernel: vsock/virtio: bind uarg before filling zerocopy skb (CVE-2026-63970)

* kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018)

* kernel: igc: set tx buffer type for SMD frames (CVE-2026-64035)

* kernel: idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() (CVE-2026-64162)

* kernel: vsock/vmci: fix UAF when peer resets connection during handshake (CVE-2026-64115)

* kernel: ALSA: hda/cs35l41: Fix firmware load work teardown (CVE-2026-64481)

* kernel: Kernel: Remote out-of-bounds write in RDMA/siw (CVE-2026-64268)

* kernel: fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)

* kernel: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path (CVE-2026-64303)

* kernel: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)

* kernel: drm/amd/display: set new_stream to NULL after release (CVE-2026-68236)

* kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293)

* kernel: ALSA: seq: close a re-opened queue timer in the destructor (CVE-2026-68202)

* kernel: Linux kernel: Denial of Service due to use-after-free in act_tunnel_key (CVE-2026-68377)

* kernel: drm/dp/mst: fix buffer overflows in sideband chunk accumulation (CVE-2026-68278)

* kernel: vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets (CVE-2026-68299)

* kernel: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() (CVE-2026-68245)

* kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)

* kernel: KVM: arm64: vgic: Check the interrupt is still ours before migrating it (CVE-2026-72289)

* kernel: tipc: require net admin for TIPCv2 netlink mutators (CVE-2026-74283)

* kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509)

* kernel: Bluetooth: mgmt: fix UAF in pair command cancellation (CVE-2026-74510)

* kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)

* kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705)

* kernel: xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN (CVE-2026-80530)

* kernel: xfs: bounds-check buffer log item's dirty bitmap (CVE-2026-80536)

* kernel: drm/vmwgfx: use check_add_overflow for shader size+offset bound (CVE-2026-80887)

* kernel: smb: client: reject a tree connect response whose byte count is too small (CVE-2026-89631)

* kernel: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (CVE-2026-80985)

* kernel: openvswitch: Fix CT limit teardown use-after-free (CVE-2026-89488)

* kernel: entry: Fix seccomp bypass after ptrace with TSYNC (CVE-2026-89603)

* kernel: vfio/pci: clear vdev->msi_perm after freeing it on init failure (CVE-2026-89777)

* kernel: scsi: target: iscsi: Reserve a terminator byte for the login payload (CVE-2026-90011)

* kernel: drm/amdkfd: Add TLB flush after MES queue eviction/suspension (CVE-2026-89811)

* kernel: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers (CVE-2026-90315)

* kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)

* kernel: virtio-fs: avoid double-free on failed queue setup (CVE-2026-93827)

* kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation ()

* kernel: xfrm: hold net_device reference under RCU in bundle creation (CVE-2026-98364)

* kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260)

* kernel: netfilter: flowtable: hold reference on ct until flow is released (CVE-2026-98320)

* kernel: ipv4: free inet_opt and ireq_opt after an RCU grace period (CVE-2026-98432)

* kernel: KVM: arm64: Transfer the hyp stack pages out of the host stage-2 (CVE-2026-98466)

* kernel: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() (CVE-2026-98725)

* kernel: kernel: xfs: Unauthorized data modification via improper file size exchange handling (CVE-2026-98974)

Bug Fix(es) and Enhancement(s):

* RHEL 9.8: Multiuser Kerberized DFS shares fail to mount with UID mount option [rhel-9.9.z] (JIRA:RHEL-254109)

* Backport request: bonding: only set speed/duplex to unknown, if getting speed failed [rhel-9.9] (JIRA:RHEL-174325)

* [RHEL-9.9] gfp: include __GFP_NOWARN in GFP_NOWAIT (JIRA:RHEL-249621)

* gfs2: Get rid of sd_async_glock_wait [rhel-9.9.z] (JIRA:RHEL-254079)

* TLS-related kernel panics in kernel-5.14.0-741.10.1.el9_9 and higher (JIRA:RHEL-283336)

* RHEL is missing support for conntrack zone filtering in dump/delete requests (9.10) [rhel-9.9.z] (JIRA:RHEL-291353)

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 affected packages.

Plugin Details

Severity: High

ID: 378732

File Name: redhat-RHSA-2026-97873.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/11/2026

Updated: 11/11/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.32

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-63899

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, 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-64k-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-64k, 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-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-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-devel, 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-addons, 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:libperf, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/11/2026

Vulnerability Publication Date: 4/16/2025

Reference Information

CVE: CVE-2025-22063, CVE-2025-38004, CVE-2025-38147, CVE-2026-43332, CVE-2026-53365, CVE-2026-63899, CVE-2026-63962, CVE-2026-63970, CVE-2026-64018, CVE-2026-64034, CVE-2026-64035, CVE-2026-64162, CVE-2026-64266, CVE-2026-64268, CVE-2026-64378, CVE-2026-64481, CVE-2026-68202, CVE-2026-68236, CVE-2026-68245, CVE-2026-68278, CVE-2026-68293, CVE-2026-68299, CVE-2026-72083, CVE-2026-72289, CVE-2026-72319, CVE-2026-74705, CVE-2026-80536, CVE-2026-80887, CVE-2026-80985, CVE-2026-89631, CVE-2026-89777, CVE-2026-89811, CVE-2026-90011, CVE-2026-93817, CVE-2026-93827, CVE-2026-98260, CVE-2026-98320, CVE-2026-98466, CVE-2026-98725

CWE: 120, 125, 1285, 1287, 131, 1341, 367, 416, 476, 617, 653, 763, 787, 825, 909, 911

RHSA: 2026:97873

Detections

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