CVE-2026-99284ModerateLocal

net: skbuff: propagate shared-frag marker in skb_zerocopy()

MSRC advisory NVD CVE.org

Assessment

Severity: Moderate
CVSS base score: 4.7
Impact: Not stated
Exploitation detected: Unknown: not stated by MSRC
Exploitability: Not assessed
Publicly disclosed: Unknown: not stated by MSRC
EPSS · 30-day forecast: No EPSS score collected
Customer action: Required: follow the MSRC remediation guidance

More details

CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Public detection template: No Nuclei template is listed in the current collected catalog
Component: Mariner
Weakness: —
Issued by: Linux
Published: 9 Nov 2026 · November 2026
Last revised: 9 Nov 2026

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: HighI:H
Availability: NoneA:N

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Open Source Software

1 affected product

azl3 kernel 6.6.161.1-1 on Azure Linux 3.0

Page history

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cve-program · CVE-2026-99284

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": [
                        "net/core/skbuff.c"
                    ],
                    "versions": [
                        {
                            "version": "af2806f8f90a150160be898cd85332459c83c5cb",
                            "lessThan": "1c623e3cbf43f12dd4a72712079bfa247a9b8ba3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "af2806f8f90a150160be898cd85332459c83c5cb",
                            "lessThan": "d7d6ff98d5d1b400f02211f962ac32cc0020aeab",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "af2806f8f90a150160be898cd85332459c83c5cb",
                            "lessThan": "1a9c180cd8435917b7516edfb1c9148032c28773",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "af2806f8f90a150160be898cd85332459c83c5cb",
                            "lessThan": "79dc34beb1fdb3da79753e51e15c68591a2561fe",
                            "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": [
                        "net/core/skbuff.c"
                    ],
                    "versions": [
                        {
                            "version": "3.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.61",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.15",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3.2",
                            "lessThanOrEqual": "7.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.4-rc1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

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