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AlmaLinux 10 : kernel (ALSA-2026:76738)

high Nessus Plugin ID 367954

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-2026:76738 advisory.

 * kernel: netfilter: nf_conncount: increase the connection clean up limit to 64 (CVE-2026-45860)
 * kernel: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (CVE-2026-45856)
 * kernel: Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths (CVE-2026-46275)
 * kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 (CVE-2026-52972)
 * kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270)
 * kernel: Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() (CVE-2026-53357)
 * kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829)
 * kernel: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (CVE-2026-63794)
 * kernel: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924)
 * kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922)
 * kernel: ipv6: validate extension header length before copying to cmsg (CVE-2026-63920)
 * kernel: tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (CVE-2026-64024)
 * kernel: l2tp: use refcount_inc_not_zero in l2tp_session_get_by_ifname (CVE-2026-63918)
 * kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (CVE-2026-63984)
 * kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (CVE-2026-63992)
 * kernel: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() (CVE-2026-63994)
 * kernel: netfilter: x_tables: add and use xtables_unregister_table_exit (CVE-2026-64078)
 * kernel: ipv6: ioam: refresh hdr pointer before ioam6_event() (CVE-2026-64132)
 * kernel: Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb() (CVE-2026-64557)
 * 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: nft_lookup: fix catchall element handling with inverted lookups (CVE-2026-72320)
 * kernel: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst (CVE-2026-72255)
 * kernel: KVM: SVM: Update x2APIC MSR intercepts if AVIC is inhibited while L2 is active (CVE-2026-74516)
 * kernel: packet: use consistent hard_header_len in non-ring send paths ()
 * kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582)
 * kernel: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (CVE-2026-74669)
 * kernel: netfilter: flowtable: publish GC-visible tuple last (CVE-2026-74746)
 * kernel: ipv6: fix use-after-free in ip6_finish_output2() (CVE-2026-80792)
 * kernel: futex: Fix race on the initial mm->futex.phash.ref allocation (CVE-2026-80775)
 * kernel: KVM: s390: vsie: zero stale crypto bits (CVE-2026-80921)
 * kernel: nvme: add missing SRCU grace period in error path (CVE-2026-89972)
 * kernel: nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() (CVE-2026-90227)
 * kernel: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() (CVE-2026-97417)
 * kernel: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (CVE-2026-93288)


 Bug Fix(es) and Enhancement(s):

 * wifi card breaks using FIPS (JIRA:AlmaLinux-257457)
 * AlmaLinux10.0 - kernel: CPU hotplug unsupported by CPUMF [almalinux-10.2.z] (JIRA:AlmaLinux-270888)

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-2026:76738

https://errata.almalinux.org/10/ALSA-2026-76738.html

Plugin Details

Severity: High

ID: 367954

File Name: alma_linux_ALSA-2026-76738.nasl

Version: 1.1

Type: Local

Published: 10/20/2026

Updated: 10/20/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 98.94

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-63794

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/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/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2026

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-45856, CVE-2026-45860, CVE-2026-46275, CVE-2026-52972, CVE-2026-53270, CVE-2026-53357, CVE-2026-63794, CVE-2026-63829, CVE-2026-63918, CVE-2026-63920, CVE-2026-63922, CVE-2026-63924, CVE-2026-63984, CVE-2026-63992, CVE-2026-63994, CVE-2026-64024, CVE-2026-64078, CVE-2026-64132, CVE-2026-64557, CVE-2026-68432, CVE-2026-72052, CVE-2026-72255, CVE-2026-72320, CVE-2026-74516, CVE-2026-74582, CVE-2026-74669, CVE-2026-74746, CVE-2026-80775, CVE-2026-80792, CVE-2026-80921, CVE-2026-89972, CVE-2026-90227, CVE-2026-93288, CVE-2026-97417

CWE: 1025, 125, 1284, 1341, 190, 266, 342, 366, 459, 476, 770, 787, 805, 825, 843, 908, 911

RHSA: 2026:76738