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Oracle Linux 10 : kernel (ELSA-2026-76738)

high Nessus Plugin ID 368019

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-76738 advisory.

 - netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (CKI Backport Bot) [RHEL-271653] {CVE-2026-93288}
 - tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (Davide Caratti) [RHEL-231698] {CVE-2026-64024}
 - Bluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled (CKI Backport Bot) [RHEL-232645] {CVE-2026-46275}
 - Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths (CKI Backport Bot) [RHEL-232645] {CVE-2026-46275}
 - nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() (CKI Backport Bot) [RHEL-269475] {CVE-2026-90227}
 - nvme: add missing SRCU grace period in error path (CKI Backport Bot) [RHEL-270934] {CVE-2026-89972}
 - ipv6: ioam: refresh hdr pointer before ioam6_event() (Prasenjit Mukherjee) [RHEL-259773] {CVE-2026-64132}
 - netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() (CKI Backport Bot) [RHEL-270657] {CVE-2026-97417}
 - crypto: af_alg - Cap AEAD AD length to 0x80000000 (Pablo Alessandro Santos Hugen) [RHEL-259063] {CVE-2026-52972}
 - futex: Prevent rcuwait use-after-free during requeue PI (Waiman Long) [RHEL-263469] {CVE-2026-90003}
 - futex: Fix race on the initial mm->futex.phash.ref allocation (Waiman Long) [RHEL-263469] {CVE-2026-80775}
 - futex/pi: Reject cross-mm private futex owners (Waiman Long) [RHEL-263469] {CVE-2026-80778}
 - futex: Avoid private hash use-after-free on final put (Waiman Long) [RHEL-263469] {CVE-2026-80758}
 - futex: Fix race in futex_pivot_pending() during private hash resize (Waiman Long) [RHEL-263469] {CVE-2026-80776}
 - futex: Prevent robust futex exit race some more (Waiman Long) [RHEL-263469] {CVE-2026-74658}
 - ipvs: reload ip header after head reallocation (CKI Backport Bot) [RHEL-263870] {CVE-2026-68476}
 - ipv6: fix use-after-free in ip6_finish_output2() (Antoine Tenart) [RHEL-258672] {CVE-2026-80792}
 - ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (Antoine Tenart) [RHEL-259369] {CVE-2026-63924}
 - ipv6: exthdrs: refresh nh after handling HAO option (Antoine Tenart) [RHEL-259404] {CVE-2026-63922}
 - ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (Antoine Tenart) [RHEL-231288] {CVE-2026-63984}
 - ipv6: validate extension header length before copying to cmsg (Antoine Tenart) [RHEL-225393] {CVE-2026-63920}
 - Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb() (CKI Backport Bot) [RHEL-231359] {CVE-2026-64557}
 - Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb() (CKI Backport Bot) [RHEL-231359] {CVE-2026-64557}
 - Bluetooth: 6lowpan: fix cyclic locking warning on netdev unregister (CKI Backport Bot) [RHEL-231359] {CVE-2026-64557}
 - l2tp: use refcount_inc_not_zero in l2tp_session_get_by_ifname (Abhishek Rawal) [RHEL-227466] {CVE-2026-63918}
 - tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (Abhishek Rawal) [RHEL-230778] {CVE-2026-63992}
 - tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() (Abhishek Rawal) [RHEL-259564] {CVE-2026-63994}
 - vxlan: require CAP_NET_ADMIN in the device netns for changelink (Abhishek Rawal) [RHEL-239729] {CVE-2026-68432}
 - net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink (Abhishek Rawal) [RHEL-247005] {CVE-2026-72052}
 - net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (Abhishek Rawal) [RHEL-247054] {CVE-2026-63829}
 - Bluetooth: fix UAF in bt_accept_dequeue() (CKI Backport Bot) [RHEL-229761] {CVE-2026-53357}
 - Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() (CKI Backport Bot) [RHEL-229761] {CVE-2026-53357}
 - netfilter: nft_lookup: fix catchall element handling with inverted lookups (CKI Backport Bot) [RHEL-261255] {CVE-2026-72320}
 - KVM: s390: vsie: zero stale crypto bits (CKI Backport Bot) [RHEL-258155] {CVE-2026-80921}
 - KVM: SVM: Update x2APIC MSR intercepts if AVIC is inhibited while L2 is active (CKI Backport Bot) [RHEL-254525] {CVE-2026-74516}
 - KVM: SVM: Set/clear CR8 write interception when AVIC is (de)activated (CKI Backport Bot) [RHEL-254525] {CVE-2026-74516}
 - KVM: SVM: Move x2AVIC MSR interception helper to avic.c (CKI Backport Bot) [RHEL-254525] {CVE-2026-74516}
 - KVM: SVM: Add a helper to look up the max physical ID for AVIC (CKI Backport Bot) [RHEL-254525] {CVE-2026-74516}
 - KVM: SVM: Limit AVIC physical max index based on configured max_vcpu_ids (CKI Backport Bot) [RHEL-254525] {CVE-2026-74516}
 - ipvs: clear IPv4 options after rebasing tunnel ICMP errors (CKI Backport Bot) [RHEL-254392] {CVE-2026-74669}
 - ipvs: ensure inner headers in ICMP errors are in headroom (CKI Backport Bot) [RHEL-254392] {CVE-2026-74669}
 - ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (CKI Backport Bot) [RHEL-254392] {CVE-2026-74669}
 - netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst (CKI Backport Bot) [RHEL-252430] {CVE-2026-72255}
 - netfilter: x_tables: add and use xtables_unregister_table_exit (Phil Sutter) [RHEL-243394] {CVE-2026-64078}
 - netfilter: flowtable: publish GC-visible tuple last (CKI Backport Bot) [RHEL-250538] {CVE-2026-74746}
 - packet: use consistent hard_header_len in non-ring send paths (Toke Hoiland-Jorgensen) [RHEL-244537] {CVE-2026-74582}
 - RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (CKI Backport Bot) [RHEL-232598] {CVE-2026-45856}
 - netfilter: nf_conncount: increase the connection clean up limit to 64 (CKI Backport Bot) [RHEL-232220] {CVE-2026-45860}
 - ipvs: clear the svc scheduler ptr early on edit (CKI Backport Bot) [RHEL-225996] {CVE-2026-53270}
 - KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (CKI Backport Bot) [RHEL-214949] {CVE-2026-63794}
 - dm-integrity: don't increment hash_offset twice (CKI Backport Bot) [RHEL-257773] {CVE-2026-72099}
 - net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CKI Backport Bot) [RHEL-230992] {CVE-2026-64034}

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

See Also

https://linux.oracle.com/errata/ELSA-2026-76738.html

Plugin Details

Severity: High

ID: 368019

File Name: oraclelinux_ELSA-2026-76738.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/20/2026

Updated: 10/20/2026

Supported Sensors: Nessus Agent, Continuous Assessment, 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:oracle:linux:10, cpe:/o:oracle:linux:10:2:baseos_patch, p-cpe:/a:oracle:linux:kernel-abi-stablelists, p-cpe:/a:oracle:linux:kernel-core, p-cpe:/a:oracle:linux:kernel-cross-headers, p-cpe:/a:oracle:linux:kernel-debug-core, p-cpe:/a:oracle:linux:kernel-debug-devel-matched, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug-modules-core, p-cpe:/a:oracle:linux:kernel-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-debug-modules, p-cpe:/a:oracle:linux:kernel-debug-uki-virt, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-devel-matched, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel-modules-core, p-cpe:/a:oracle:linux:kernel-modules-extra-matched, p-cpe:/a:oracle:linux:kernel-modules-extra, p-cpe:/a:oracle:linux:kernel-modules, p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:kernel-uki-virt-addons, p-cpe:/a:oracle:linux:kernel-uki-virt, p-cpe:/a:oracle:linux:kernel, p-cpe:/a:oracle:linux:libperf, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:python3-perf, p-cpe:/a:oracle:linux:rtla, p-cpe:/a:oracle:linux:rv

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

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-2026-68476, 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