CVE-2026-98954ModerateLocalRevised 26 Oct

net: always dissect GSO packets in __virtio_net_hdr_to_skb()

MSRC advisory NVD CVE.org

Assessment

Severity: Moderate
CVSS base score: 4.4CVSS:3.1/AV:L/AC:L/PR:H/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: LowAC:L
Privileges required: HighPR:H
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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Explore global source statements, affected packages and advisory history for CVE-2026-98954. The catalog has a separate collection scope from Microsoft release records.

cve-program · CVE-2026-98954

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": [
                        "arch/um/drivers/vector_transports.c",
                        "drivers/net/tun.c",
                        "drivers/net/virtio_net.c",
                        "include/linux/virtio_net.h"
                    ],
                    "versions": [
                        {
                            "version": "d5be7f632bad0f489879eed0ff4b99bd7fe0b74c",
                            "lessThan": "5f4dfdf0077730e9d3ef5b37ceb17a5a56d6f34c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d5be7f632bad0f489879eed0ff4b99bd7fe0b74c",
                            "lessThan": "44378d02c5aaae24b60a75fbbb539b4aa4db503d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dac7d4432b13d6b58923c1178b786bcda37c9e9e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e93384b12443c9bb6830b56b7d299beed432b865",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f709f7b28d76de327373598a0fda9f916c36b5e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d996573ebd5c528c613e90b7e7daa961d58fa16e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c375152be9dd9d6fbf6ae5ac8be337d0590f192a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0dab7eb86ea06ce8c530785f1999948c6f223c96",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ea3fb2ce5fa794d02135f5c079e05cd6fc3f545d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "54ef8243c3c8e90f1ea5792e6752e021a25c8eb3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.14.104",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.26",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.20.13",
                            "lessThan": "4.21",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.226",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.181",
                            "lessThan": "4.20",
                            "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": [
                        "arch/um/drivers/vector_transports.c",
                        "drivers/net/tun.c",
                        "drivers/net/virtio_net.c",
                        "include/linux/virtio_net.h"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "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"
                        }
                    ]
                }