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Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50261)

high Nessus Plugin ID 314332

Synopsis

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

Description

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50261 advisory.

 - xfrm: esp: ipv4: fix up flags setting (Greg Kroah-Hartman) [Orabug: 39344515] {CVE-2026-43284}
 - xfrm: esp: avoid in-place decrypt on shared skb frags (Kuan-Ting Chen) [Orabug: 39344515] {CVE-2026-43284}
 - x86/CPU/AMD: Add a fix for AMD-SB-7052 (Prathyushi Nangia) [Orabug: 39327141] {CVE-2025-54518}
 - crypto: algif_aead - Revert to operating out-of-place (Herbert Xu) [Orabug: 39250686] {CVE-2026-31431}
 - x86/CPU: Fix FPDSS on Zen1 (Borislav Petkov) [Orabug: 39241228,39273722] {CVE-2026-31628}
 - net/handshake: duplicate handshake cancellations leak socket (Scott Mayhew) [Orabug: 38847720] {CVE-2025-68775}
 - ipv6: use RCU in ip6_xmit() (Eric Dumazet) [Orabug: 38649062] {CVE-2025-40135}
 - scsi: qla2xxx: Sanitize payload size to prevent member overflow (Jiasheng Jiang) [Orabug: 38930868] {CVE-2026-23059}
 - bpf: Fix reference count leak in bpf_prog_test_run_xdp() (Tetsuo Handa) [Orabug: 38887702] {CVE-2026-22994}
 - nfsd: check that server is running in unlock_filesystem (Olga Kornievskaia) [Orabug: 38887682] {CVE-2026-22989}
 - net/mlx5e: TC, delete flows only for existing peers (Mark Bloch) [Orabug: 38970398] {CVE-2026-23173}
 - net/handshake: restore destructor on submit failure (Caoping) [Orabug: 38887601] {CVE-2025-71148}
 - scsi: qla2xxx: Fix improper freeing of purex item (Zilin Guan) [Orabug: 38798929] {CVE-2025-68741}
 - bnxt_en: Fix XDP_TX path (Michael Chan) [Orabug: 38847684] {CVE-2025-68770}
 - perf/x86/amd: Check event before enable to avoid GPF (George Kennedy) [Orabug: 38847849] {CVE-2025-68798}
 - scsi: smartpqi: Fix device resources accessed after device removal (Mike Mcgowen) [Orabug: 38798848] {CVE-2025-68371}
 - KVM: SVM: Don't skip unrelated instruction if INT3/INTO is replaced (Omar Sandoval) [Orabug: 38773579] {CVE-2025-68259}
 - x86/fpu: Ensure XFD state on signal delivery (Chang S. Bae) [Orabug: 38773165] {CVE-2025-68171}
 - virtio-net: fix received length check in big packets (Bui Quang Minh) [Orabug: 38737152] {CVE-2025-40292}
 - ACPI: CPPC: Fix NULL pointer dereference when nosmp is used (Yunhui Cui) [Orabug: 38641284] {CVE-2025-38113}
 - EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller (Qiuxu Zhuo) [Orabug: 38649173] {CVE-2025-40157}
 - sunrpc: fix null pointer dereference on zero-length checksum (Lei Lu) [Orabug: 38649042] {CVE-2025-40129}
 - cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost() (Jinjie Ruan) [Orabug: 38641275] {CVE-2024-53230}
 - cpufreq: CPPC: Fix possible null-ptr-deref for cpufreq_cpu_get_raw() (Jinjie Ruan) [Orabug: 38641272] {CVE-2024-53231}
 - vhost: vringh: Fix copy_to_iter return value check (Michael S. Tsirkin) [Orabug: 38592117] {CVE-2025-40056}
 - crypto: qat - flush misc workqueue during device shutdown (Giovanni Cabiddu) [Orabug: 38401717] {CVE-2025-39721}
 - vhost: vringh: Modify the return value check (Zhang Jiao) [Orabug: 38592085] {CVE-2025-40051}
 - virtio-net: fix recursived rtnl_lock() during probe() (Zigit Zo) [Orabug: 38324330] {CVE-2025-38551}
 - gve: prevent ethtool ops after shutdown (Jordan Rhee) [Orabug: 38401492] {CVE-2025-38735}
 - KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight (Sean Christopherson) [Orabug: 38254140] {CVE-2025-38455}
 - net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect (Oleksij Rempel) [Orabug: 38253871] {CVE-2025-38385}
 - net/mlx5e: Disable MACsec offload for uplink representor profile (Carolina Jubran) [Orabug: 38094809] {CVE-2025-38020}
 - dmaengine: idxd: fix memory leak in error handling path of idxd_alloc (Shuai Xue) [Orabug: 38094794] {CVE-2025-38015}
 - net/mlx5: Fix ECVF vports unload on shutdown flow (Amir Tzin) [Orabug: 38152903] {CVE-2025-38109}
 - bnxt: properly flush XDP redirect lists (Yan Zhai) [Orabug: 38175054] {CVE-2025-38246}
 - eth: bnxt: fix missing ring index trim on error path (Jakub Kicinski) [Orabug: 37937451] {CVE-2025-37873}
 - net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table() (Henry Martin) [Orabug: 37938078] {CVE-2025-37888}
 - nfsd: fix possible badness in FREE_STATEID (Olga Kornievskaia) [Orabug: 37989102] {CVE-2024-50043}
 - devlink: fix xa_alloc_cyclic() error handling (Michal Swiatkowski) [Orabug: 37828271] {CVE-2025-22017}
 - xsk: fix an integer overflow in xp_create_and_assign_umem() (Gavrilov Ilia) [Orabug: 37828202] {CVE-2025-21997}
 - RDMA/mlx5: Fix the recovery flow of the UMR QP (Yishai Hadas) [Orabug: 37766306] {CVE-2025-21892}
 - misc: misc_minor_alloc to use ida for all dynamic/misc dynamic minors (Vimal Agrawal) [Orabug: 37678552] {CVE-2024-58078}
 - net/sched: cls_api: fix error handling causing NULL dereference (Pierre Riteau) [Orabug: 37702083] {CVE-2025-21857}
 - bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type() (Shigeru Yoshida) [Orabug: 37766220] {CVE-2025-21867}
 - net: xdp: Disallow attaching device-bound programs in generic mode (Toke Hoiland-Jorgensen) [Orabug:
 37650238] {CVE-2025-21808}
 - iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() (Qasim Ijaz) [Orabug:
 37649891] {CVE-2025-21724}
 - xfrm: delete intermediate secpath entry in packet offload mode (Alexandre Cassen) [Orabug: 37649866] {CVE-2025-21720}
 - gpiolib: Fix crash on error in gpiochip_get_ngpios() (Andy Shevchenko) [Orabug: 37650154] {CVE-2025-21783}
 - scsi: mpi3mr: Fix possible crash when setting up bsg fails (Guixin Liu) [Orabug: 37649886] {CVE-2025-21723}
 - KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE (Sean Christopherson) [Orabug: 39151165,39159089] {CVE-2026-23401}
 - scsi: core: Fix refcount leak for tagset_refcnt (Junxiao Bi) [Orabug: 38976650,39130775] {CVE-2026-23296}
 - net: atm: fix crash due to unvalidated vcc pointer in sigd_send() (Jiayuan Chen) [Orabug: 39188477] {CVE-2026-31411}
 - RDMA/umad: Reject negative data_len in ib_umad_write (Yunje Shin) [Orabug: 39103109] {CVE-2026-23243}

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-2026-50261.html

Plugin Details

Severity: High

ID: 314332

File Name: oraclelinux_ELSA-2026-50261.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/12/2026

Updated: 5/12/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

CVSS Score Source: CVE-2025-38385

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 8.6

Threat Vector: CVSS:4.0/E:A

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-31431

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-container, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek64k-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules, p-cpe:/a:oracle:linux:kernel-uek64k, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek64k-modules, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, cpe:/o:oracle:linux:9:7:baseos_patch, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-uek-debug-core, p-cpe:/a:oracle:linux:kernel-uek-debug-modules, p-cpe:/a:oracle:linux:kernel-uek64k-devel, p-cpe:/a:oracle:linux:kernel-uek-container-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-uek64k-core, p-cpe:/a:oracle:linux:kernel-uek-core

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/10/2026

Vulnerability Publication Date: 10/10/2023

CISA Known Exploited Vulnerability Due Dates: 5/15/2026

Reference Information

CVE: CVE-2024-50043, CVE-2024-53230, CVE-2024-53231, CVE-2024-58078, CVE-2025-21720, CVE-2025-21723, CVE-2025-21724, CVE-2025-21783, CVE-2025-21808, CVE-2025-21857, CVE-2025-21867, CVE-2025-21892, CVE-2025-21997, CVE-2025-22017, CVE-2025-37873, CVE-2025-37888, CVE-2025-38015, CVE-2025-38020, CVE-2025-38109, CVE-2025-38113, CVE-2025-38246, CVE-2025-38385, CVE-2025-38455, CVE-2025-38551, CVE-2025-38735, CVE-2025-39721, CVE-2025-40051, CVE-2025-40056, CVE-2025-40129, CVE-2025-40135, CVE-2025-40157, CVE-2025-40292, CVE-2025-54518, CVE-2025-68171, CVE-2025-68259, CVE-2025-68371, CVE-2025-68741, CVE-2025-68770, CVE-2025-68775, CVE-2025-68798, CVE-2025-71148, CVE-2026-22989, CVE-2026-22994, CVE-2026-23059, CVE-2026-23173, CVE-2026-23243, CVE-2026-23296, CVE-2026-23401, CVE-2026-31411, CVE-2026-31431, CVE-2026-31628, CVE-2026-43284

IAVA: 2026-A-0428