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AlmaLinux 10 : kernel (ALSA-2026:91565)

medium Nessus Plugin ID 373226

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:91565 advisory.

 * kernel: tcp: restrict SO_ATTACH_FILTER to priv users (CVE-2026-53236)
 * kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)
 * kernel: net: shaper: rework the VALID marking (again) (CVE-2026-64027)
 * kernel: net/handshake: hand off the pinned file reference to accept_doit (CVE-2026-63979)
 * kernel: net/handshake: Drain pending requests at net namespace exit (CVE-2026-63978)
 * kernel: af_unix: Fix UAF read of tail->len in unix_stream_data_wait() (CVE-2026-64109)
 * kernel: net/handshake: Take a long-lived file reference at submit (CVE-2026-64523)
 * kernel: net: gro: fix double aggregation of flush-marked skbs (CVE-2026-68136)
 * kernel: net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)
 * kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)
 * kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)
 * kernel: net: smc: fix splice entry lifetime imbalance in smc_rx_splice (CVE-2026-74631)
 * kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)
 * kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CVE-2026-89638)
 * kernel: vfio/pci: clear vdev->msi_perm after freeing it on init failure (CVE-2026-89777)
 * kernel: md/raid5-ppl: fix use-after-free in ppl_do_flush() (CVE-2026-93262)


 Bug Fix(es) and Enhancement(s):

 * x86/microcode: Add platform mask to Intel microcode old list [AlmaLinux-10] [almalinux-10.2.z] (JIRA:AlmaLinux-212778)
 * net: NULL pointer deref kernel panic in fib6_walk_continue under heavy VRF churn [almalinux-10.2.z] (JIRA:AlmaLinux-245489)
 * backport fixes for lockdep issues reported with rt-debug [almalinux-10.2.z] (JIRA:AlmaLinux-259937)

Tenable has extracted the preceding description block directly from the AlmaLinux 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.

See Also

https://access.redhat.com/errata/RHSA-2026:91565

https://errata.almalinux.org/10/ALSA-2026-91565.html

Plugin Details

Severity: Medium

ID: 373226

File Name: alma_linux_ALSA-2026-91565.nasl

Version: 1.1

Type: Local

Published: 10/28/2026

Updated: 10/28/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.8

Percentile: 99.33

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-53236

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:10, cpe:/o:alma:linux:10::appstream, cpe:/o:alma:linux:10::baseos, cpe:/o:alma:linux:10::highavailability, cpe:/o:alma:linux:10::nfv, cpe:/o:alma:linux:10::powertools, cpe:/o:alma:linux:10::realtime, cpe:/o:alma:linux:10::resilientstorage, cpe:/o:alma:linux:10::sap, cpe:/o:alma:linux:10::sap_hana, cpe:/o:alma:linux:10::supplementary, p-cpe:/a:alma:linux:kernel-64k-core, p-cpe:/a:alma:linux:kernel-64k-debug-core, p-cpe:/a:alma:linux:kernel-64k-debug-devel-matched, p-cpe:/a:alma:linux:kernel-64k-debug-devel, p-cpe:/a:alma:linux:kernel-64k-debug-modules-core, p-cpe:/a:alma:linux:kernel-64k-debug-modules-extra, p-cpe:/a:alma:linux:kernel-64k-debug-modules, p-cpe:/a:alma:linux:kernel-64k-debug, p-cpe:/a:alma:linux:kernel-64k-devel-matched, p-cpe:/a:alma:linux:kernel-64k-devel, p-cpe:/a:alma:linux:kernel-64k-modules-core, p-cpe:/a:alma:linux:kernel-64k-modules-extra, p-cpe:/a:alma:linux:kernel-64k-modules, p-cpe:/a:alma:linux:kernel-64k, p-cpe:/a:alma:linux:kernel-abi-stablelists, p-cpe:/a:alma:linux:kernel-core, p-cpe:/a:alma:linux:kernel-cross-headers, p-cpe:/a:alma:linux:kernel-debug-core, p-cpe:/a:alma:linux:kernel-debug-devel-matched, p-cpe:/a:alma:linux:kernel-debug-devel, p-cpe:/a:alma:linux:kernel-debug-modules-core, p-cpe:/a:alma:linux:kernel-debug-modules-extra, p-cpe:/a:alma:linux:kernel-debug-modules, p-cpe:/a:alma:linux:kernel-debug-uki-virt, p-cpe:/a:alma:linux:kernel-debug, p-cpe:/a:alma:linux:kernel-devel-matched, p-cpe:/a:alma:linux:kernel-devel, p-cpe:/a:alma:linux:kernel-headers, p-cpe:/a:alma:linux:kernel-modules-core, p-cpe:/a:alma:linux:kernel-modules-extra-matched, p-cpe:/a:alma:linux:kernel-modules-extra, p-cpe:/a:alma:linux:kernel-modules, p-cpe:/a:alma:linux:kernel-rt-64k-core, p-cpe:/a:alma:linux:kernel-rt-64k-debug-core, p-cpe:/a:alma:linux:kernel-rt-64k-debug-devel, p-cpe:/a:alma:linux:kernel-rt-64k-debug-modules-core, p-cpe:/a:alma:linux:kernel-rt-64k-debug-modules-extra, p-cpe:/a:alma:linux:kernel-rt-64k-debug-modules, p-cpe:/a:alma:linux:kernel-rt-64k-debug, p-cpe:/a:alma:linux:kernel-rt-64k-devel, p-cpe:/a:alma:linux:kernel-rt-64k-modules-core, p-cpe:/a:alma:linux:kernel-rt-64k-modules-extra, p-cpe:/a:alma:linux:kernel-rt-64k-modules, p-cpe:/a:alma:linux:kernel-rt-64k, p-cpe:/a:alma:linux:kernel-rt-core, p-cpe:/a:alma:linux:kernel-rt-debug-core, p-cpe:/a:alma:linux:kernel-rt-debug-devel, p-cpe:/a:alma:linux:kernel-rt-debug-modules-core, p-cpe:/a:alma:linux:kernel-rt-debug-modules-extra, p-cpe:/a:alma:linux:kernel-rt-debug-modules, p-cpe:/a:alma:linux:kernel-rt-debug, p-cpe:/a:alma:linux:kernel-rt-devel, p-cpe:/a:alma:linux:kernel-rt-modules-core, p-cpe:/a:alma:linux:kernel-rt-modules-extra, p-cpe:/a:alma:linux:kernel-rt-modules, p-cpe:/a:alma:linux:kernel-rt, p-cpe:/a:alma:linux:kernel-tools-libs-devel, p-cpe:/a:alma:linux:kernel-tools-libs, p-cpe:/a:alma:linux:kernel-tools, p-cpe:/a:alma:linux:kernel-uki-virt-addons, p-cpe:/a:alma:linux:kernel-uki-virt, p-cpe:/a:alma:linux:kernel-zfcpdump-core, p-cpe:/a:alma:linux:kernel-zfcpdump-devel-matched, p-cpe:/a:alma:linux:kernel-zfcpdump-devel, p-cpe:/a:alma:linux:kernel-zfcpdump-modules-core, p-cpe:/a:alma:linux:kernel-zfcpdump-modules-extra, p-cpe:/a:alma:linux:kernel-zfcpdump-modules, p-cpe:/a:alma:linux:kernel-zfcpdump, p-cpe:/a:alma:linux:kernel, p-cpe:/a:alma:linux:libperf, p-cpe:/a:alma:linux:perf, p-cpe:/a:alma:linux:python3-perf, p-cpe:/a:alma:linux:rtla, p-cpe:/a:alma:linux:rv

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/28/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-53236, CVE-2026-53388, CVE-2026-63978, CVE-2026-63979, CVE-2026-64027, CVE-2026-64109, CVE-2026-64523, CVE-2026-68136, CVE-2026-68338, CVE-2026-72083, CVE-2026-74515, CVE-2026-74631, CVE-2026-80824, CVE-2026-89638, CVE-2026-89777, CVE-2026-93262

CWE: 266, 281, 367, 416, 476, 772, 821, 825, 911

RHSA: 2026:91565