CVE-2026-98985ModerateLocalRevised 26 Oct

namespace: check the mounts before reading their parents in pivot_root()

MSRC advisory NVD CVE.org

Assessment

Severity: Moderate
CVSS base score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
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: LowPR:L
User interaction: NoneUI:N
Scope: UnchangedS:U
Confidentiality: NoneC:N
Integrity: NoneI:N
Availability: HighA:H

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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cve-program · CVE-2026-98985

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": [
                        "fs/namespace.c"
                    ],
                    "versions": [
                        {
                            "version": "e0c9c0afd2fc958ffa34b697972721d81df8a56f",
                            "lessThan": "a56d4f8f8f4c5d9ac339d5c03a9d90eecd3697fc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e0c9c0afd2fc958ffa34b697972721d81df8a56f",
                            "lessThan": "3c2441e21c3df867e4131e0ff784ecdb3a7a55f8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e0c9c0afd2fc958ffa34b697972721d81df8a56f",
                            "lessThan": "e3aba6900483f64e6c9eb328150dd633b7d36c1c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e0c9c0afd2fc958ffa34b697972721d81df8a56f",
                            "lessThan": "3dad2330c89343ba083cf7868779083fd5fbe0fe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e0c9c0afd2fc958ffa34b697972721d81df8a56f",
                            "lessThan": "6b7c001eb5857fa09041f47673666060a2e5fc1c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "84b78514033ff22c443473214ab6d0508394cf7a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.0.2",
                            "lessThan": "4.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

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": [
                        "fs/namespace.c"
                    ],
                    "versions": [
                        {
                            "version": "4.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.114",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.11",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }