CVE-2026-98942ModerateLocalRevised 26 Oct

sched_ext: Build the cid tables privately and publish them with RCU

MSRC advisory NVD CVE.org

Assessment

Severity: Moderate
CVSS base score: 4.7CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:N
Impact: Not stated
EPSS, next 30 days: Not scored yet
Public exploit code: No Nuclei template lists it
Exploitability: Not assessed
Publicly disclosed: No
Customer action: Required: apply the update
Component: Mariner
Weakness: —
Issued by: Linux
Published: 24 Oct 2026 · October 2026
Last revised: 26 Oct 2026Information published.

CVSS 3.1 base metricsRed raises the risk · green lowers it

Attack vector: LocalAV:L
Attack complexity: HighAC:H
Privileges required: HighPR:H
User interaction: NoneUI:N
Scope: UnchangedS:U
Confidentiality: HighC:H
Integrity: LowI:L
Availability: NoneA:N

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

1 affected product

azl3 kernel 6.6.157.1-1 on Azure Linux 3.0

Page history

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Explore global source statements, affected packages and advisory history for CVE-2026-98942. The catalog has a separate collection scope from Microsoft release records.

cve-program · CVE-2026-98942

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/sched/ext/cid.c",
                        "kernel/sched/ext/cid.h",
                        "kernel/sched/ext/ext.c",
                        "kernel/sched/ext/internal.h",
                        "kernel/sched/ext/sub.c"
                    ],
                    "versions": [
                        {
                            "version": "e9b55af47edf6e60c9a47b5604c3e15c5162ec86",
                            "lessThan": "0e1a74369bdbc357d3d9713734418d914a981553",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e9b55af47edf6e60c9a47b5604c3e15c5162ec86",
                            "lessThan": "3a773220d39ba993dfe5d135f8b610be10794d5d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/sched/ext/cid.c",
                        "kernel/sched/ext/cid.h",
                        "kernel/sched/ext/ext.c",
                        "kernel/sched/ext/internal.h",
                        "kernel/sched/ext/sub.c"
                    ],
                    "versions": [
                        {
                            "version": "7.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "7.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }