{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46233",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.106Z",
        "datePublished": "2026-05-28T09:40:55.019Z",
        "dateUpdated": "2026-06-14T18:04:36.157Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T18:04:36.157Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: only purge non-released claims\n\nWhen batadv_bla_purge_claims() goes through the list of claims, it is only\ntraversing the hash list with an rcu_read_lock(). Due to a potential\nparallel batadv_claim_put(), it can happen that it encounters a claim which\nwas actually in the process of being released+freed by\nbatadv_claim_release(). In this case, backbone_gw is set to NULL before the\ndelayed RCU kfree is started. Calling batadv_bla_claim_get_backbone_gw() is\nthen no longer allowed because it would cause a NULL-ptr derefence.\n\nTo avoid this, only claims with a valid reference counter must be purged.\nAll others are already taken care of."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/batman-adv/bridge_loop_avoidance.c"
                    ],
                    "versions": [
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "a9f58d5e3261f3deeae69ec1e237f38ef3ff5cbe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "6725c523a35eeca611ff37e7d4a8712fae92aefd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "afb5436f6028fd68f408f189230fbaa19c910d72",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "7b8fbcee3184d848b5aee085ca16d0cf05c9b641",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "7b7ebb7222a5524ce58e48cc9c6d688320ea6cfe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "b65365d2b1e6095c538d49baeb140dd1c166c1b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "ab3dbd07a809a8eb30c7ddfab9ac886ed30dce8d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "cf6b604011591865ae39ac82de8978c1120d17af",
                            "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/batman-adv/bridge_loop_avoidance.c"
                    ],
                    "versions": [
                        {
                            "version": "3.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.90",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.32",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.9",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "3.5",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.6.140"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.12.90"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.18.32"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "7.0.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a9f58d5e3261f3deeae69ec1e237f38ef3ff5cbe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6725c523a35eeca611ff37e7d4a8712fae92aefd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/afb5436f6028fd68f408f189230fbaa19c910d72"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b8fbcee3184d848b5aee085ca16d0cf05c9b641"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b7ebb7222a5524ce58e48cc9c6d688320ea6cfe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b65365d2b1e6095c538d49baeb140dd1c166c1b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ab3dbd07a809a8eb30c7ddfab9ac886ed30dce8d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cf6b604011591865ae39ac82de8978c1120d17af"
                }
            ],
            "title": "batman-adv: bla: only purge non-released claims",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}