{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49234",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T01:49:39.294Z",
        "datePublished": "2025-02-26T01:55:59.615Z",
        "dateUpdated": "2026-08-04T09:04:40.714Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-04T09:04:40.714Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: Avoid cross-chip syncing of VLAN filtering\n\nChanges to VLAN filtering are not applicable to cross-chip\nnotifications.\n\nOn a system like this:\n\n.-----.   .-----.   .-----.\n| sw1 +---+ sw2 +---+ sw3 |\n'-1-2-'   '-1-2-'   '-1-2-'\n\nBefore this change, upon sw1p1 leaving a bridge, a call to\ndsa_port_vlan_filtering would also be made to sw2p1 and sw3p1.\n\nIn this scenario:\n\n.---------.   .-----.   .-----.\n|   sw1   +---+ sw2 +---+ sw3 |\n'-1-2-3-4-'   '-1-2-'   '-1-2-'\n\nWhen sw1p4 would leave a bridge, dsa_port_vlan_filtering would be\ncalled for sw2 and sw3 with a non-existing port - leading to array\nout-of-bounds accesses and crashes on mv88e6xxx."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/dsa/switch.c"
                    ],
                    "versions": [
                        {
                            "version": "d371b7c92d190448f3ccbf082c90bf929285f648",
                            "lessThan": "e1f2a4dd8d433eec393d09273a78a3d3551339cf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d371b7c92d190448f3ccbf082c90bf929285f648",
                            "lessThan": "108dc8741c203e9d6ce4e973367f1bac20c7192b",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/dsa/switch.c"
                    ],
                    "versions": [
                        {
                            "version": "5.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.17.2",
                            "lessThanOrEqual": "5.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.17.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.18"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e1f2a4dd8d433eec393d09273a78a3d3551339cf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/108dc8741c203e9d6ce4e973367f1bac20c7192b"
                }
            ],
            "title": "net: dsa: Avoid cross-chip syncing of VLAN filtering",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}