{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46158",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.102Z",
        "datePublished": "2026-05-28T09:36:13.821Z",
        "dateUpdated": "2026-09-14T11:58:23.714Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-14T11:58:23.714Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: ADD_ADDR rtx: always decrease sk refcount\n\nWhen an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer().\nIt should then be released in all cases at the end.\n\nSome (unlikely) checks were returning directly instead of calling\nsock_put() to decrease the refcount. Jump to a new 'exit' label to call\n__sock_put() (which will become sock_put() in the next commit) to fix\nthis potential leak.\n\nWhile at it, drop the '!msk' check which cannot happen because it is\nnever reset, and explicitly mark the remaining one as \"unlikely\"."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mptcp/pm.c"
                    ],
                    "versions": [
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "f5555a6d7c472849fdf2b426e3d0a85103118793",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "e9ba34301d2e90f63f97c76ad9eb98e5250fe961",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "81d8142148164176385c279c7c1e1d581867423d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "9426265e157dd77ec237c795901ed4dea6d69b5c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "b41dd76f3b9735096c21d3e799a2b9fe36498d57",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "acd3d3562315c99f3c0db16f0fcc5f0306638982",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "25e37407442b8766ec2cf52fb4e31b5c3d3aeeae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "9634cb35af17019baec21ca648516ce376fa10e6",
                            "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/mptcp/pm.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.218",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.185",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.142",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.92",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.30",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.7",
                            "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": "5.10",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.15.218"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.1.185"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.6.142"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.12.92"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.18.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "7.0.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f5555a6d7c472849fdf2b426e3d0a85103118793"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e9ba34301d2e90f63f97c76ad9eb98e5250fe961"
                },
                {
                    "url": "https://git.kernel.org/stable/c/81d8142148164176385c279c7c1e1d581867423d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9426265e157dd77ec237c795901ed4dea6d69b5c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b41dd76f3b9735096c21d3e799a2b9fe36498d57"
                },
                {
                    "url": "https://git.kernel.org/stable/c/acd3d3562315c99f3c0db16f0fcc5f0306638982"
                },
                {
                    "url": "https://git.kernel.org/stable/c/25e37407442b8766ec2cf52fb4e31b5c3d3aeeae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9634cb35af17019baec21ca648516ce376fa10e6"
                }
            ],
            "title": "mptcp: pm: ADD_ADDR rtx: always decrease sk refcount",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}