{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46170",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.103Z",
        "datePublished": "2026-05-28T09:36:25.184Z",
        "dateUpdated": "2026-09-14T11:58:24.772Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-14T11:58:24.772Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: ADD_ADDR rtx: free sk if last\n\nWhen an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(),\nand released at the end.\n\nIf at that moment, it was the last reference being held, the sk would\nnot be freed. sock_put() should then be called instead of __sock_put().\n\nBut that's not enough: if it is the last reference, sock_put() will call\nsk_free(), which will end up calling sk_stop_timer_sync() on the same\ntimer, and waiting indefinitely to finish. So it is needed to mark that\nthe timer is done at the end of the timer handler when it has not been\nrescheduled, not to call sk_stop_timer_sync() on \"itself\"."
                }
            ],
            "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": "aa8cabde7e83bf96269ee47427dc9b59e3ed8e60",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "1f26487e83e69462540bb1047139472957c913c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "5da972efed3dc7599da6e2b5e8d906d1b7b1a728",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "6a3af482188f6db4186d1605f64d911d7330abb3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "531c537b8fb620beabccfb1594e8d43cbebbb87a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "b74ad20198652b6b39a761c277ba65ae82b1e107",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "8143a224785ceaf2b0856e08d4498916f38228fb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
                            "lessThan": "b7b9a461569734d33d3259d58d2507adfac107ed",
                            "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/aa8cabde7e83bf96269ee47427dc9b59e3ed8e60"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1f26487e83e69462540bb1047139472957c913c6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5da972efed3dc7599da6e2b5e8d906d1b7b1a728"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6a3af482188f6db4186d1605f64d911d7330abb3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/531c537b8fb620beabccfb1594e8d43cbebbb87a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b74ad20198652b6b39a761c277ba65ae82b1e107"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8143a224785ceaf2b0856e08d4498916f38228fb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b7b9a461569734d33d3259d58d2507adfac107ed"
                }
            ],
            "title": "mptcp: pm: ADD_ADDR rtx: free sk if last",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}