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Oracle Linux 9 : kernel (ELSA-2026-57252)

high Nessus Plugin ID 338722

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Synopsis

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

Description

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-57252 advisory.

 - smb: client: validate DFS referral PathConsumed (CKI Backport Bot) [RHEL-237668] {CVE-2026-68343}
 - posix-cpu-timers: Prevent UAF caused by non-leader exec() race (Waiman Long) [RHEL-227844] {CVE-2026-64560}
 - posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path (Waiman Long) [RHEL-227844] {CVE-2026-64370}
 - smb/client: handle overlapping allocated ranges in fallocate (CKI Backport Bot) [RHEL-236207] {CVE-2026-68388}
 - smb: client: mask server-provided mode to 07777 in modefromsid (CKI Backport Bot) [RHEL-234528] {CVE-2026-64379}
 - sched/psi: fix race between file release and pressure write (Waiman Long) [RHEL-232554] {CVE-2026-52991}
 - smb: client: fix query_info() replay double-free (CKI Backport Bot) [RHEL-234121] {CVE-2026-64386}
 - smb: client: fix double-free in SMB2_open() replay (CKI Backport Bot) [RHEL-234107] {CVE-2026-64382}
 - mm/huge_memory: update file PMD counter before folio_put() (Luiz Capitulino) [RHEL-231225] {CVE-2026-53189}
 - net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CKI Backport Bot) [RHEL-230090] {CVE-2026-64048}
 - ip6_gre: Use cached t->net in ip6erspan_changelink(). (CKI Backport Bot) [RHEL-180144] {CVE-2026-46120}
 - scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (Maurizio Lombardi) [RHEL-213222] {CVE-2026-63888}
 - drm/amdgpu: fix amdgpu_hmm_range_get_pages (Jose Exposito) [RHEL-222614] {CVE-2026-63879}
 - drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CKI Backport Bot) [RHEL-222668] {CVE-2026-53329}
 - drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CKI Backport Bot) [RHEL-222683] {CVE-2026-53136}
 - drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CKI Backport Bot) [RHEL-222703] {CVE-2026-53143}
 - drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CKI Backport Bot) [RHEL-222718] {CVE-2026-45878}
 - drm/i915: Fix potential UAF in TTM object purge (CKI Backport Bot) [RHEL-222742] {CVE-2026-63884}
 - drm/i915/gem: Fix phys BO pread/pwrite with offset (CKI Backport Bot) [RHEL-222748] {CVE-2026-53356}
 - drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CKI Backport Bot) [RHEL-222571] {CVE-2026-64219}
 - drm/amdgpu: zero-initialize GART table on allocation (CKI Backport Bot) [RHEL-222647] {CVE-2026-53374}
 - drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CKI Backport Bot) [RHEL-221333] {CVE-2026-43206}
 - drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v7 (CKI Backport Bot) [RHEL-221368] {CVE-2026-43237}
 - drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CKI Backport Bot) [RHEL-221368] {CVE-2026-43237}
 - netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CKI Backport Bot) [RHEL-230625] {CVE-2026-43233}
 - netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CKI Backport Bot) [RHEL-228909] {CVE-2026-64007}
 - memfd: deny writeable mappings when implying SEAL_WRITE (Luiz Capitulino) [RHEL-228523] {CVE-2026-63952}

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-2026-57252.html

Plugin Details

Severity: High

ID: 338722

File Name: oraclelinux_ELSA-2026-57252.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/21/2026

Updated: 8/21/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.36

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-53143

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:9, cpe:/o:oracle:linux:9:8: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, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/20/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-43206, CVE-2026-43233, CVE-2026-43237, CVE-2026-45878, CVE-2026-45991, CVE-2026-46120, CVE-2026-52991, CVE-2026-53136, CVE-2026-53143, CVE-2026-53189, CVE-2026-53329, CVE-2026-53356, CVE-2026-53374, CVE-2026-63879, CVE-2026-63884, CVE-2026-63888, CVE-2026-63952, CVE-2026-64007, CVE-2026-64048, CVE-2026-64219, CVE-2026-64379, CVE-2026-64382, CVE-2026-64386, CVE-2026-64560, CVE-2026-68343, CVE-2026-68388