{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50243",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-15T13:58:00.971Z",
        "datePublished": "2025-09-15T14:01:52.101Z",
        "dateUpdated": "2026-05-23T15:23:54.861Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:23:54.861Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: handle the error returned from sctp_auth_asoc_init_active_key\n\nWhen it returns an error from sctp_auth_asoc_init_active_key(), the\nactive_key is actually not updated. The old sh_key will be freeed\nwhile it's still used as active key in asoc. Then an use-after-free\nwill be triggered when sending patckets, as found by syzbot:\n\n  sctp_auth_shkey_hold+0x22/0xa0 net/sctp/auth.c:112\n  sctp_set_owner_w net/sctp/socket.c:132 [inline]\n  sctp_sendmsg_to_asoc+0xbd5/0x1a20 net/sctp/socket.c:1863\n  sctp_sendmsg+0x1053/0x1d50 net/sctp/socket.c:2025\n  inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819\n  sock_sendmsg_nosec net/socket.c:714 [inline]\n  sock_sendmsg+0xcf/0x120 net/socket.c:734\n\nThis patch is to fix it by not replacing the sh_key when it returns\nerrors from sctp_auth_asoc_init_active_key() in sctp_auth_set_key().\nFor sctp_auth_set_active_key(), old active_key_id will be set back\nto asoc->active_key_id when the same thing happens."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/sctp/auth.c"
                    ],
                    "versions": [
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                            "version": "50b57223da67653c61e405d0a7592355cfe4585e",
                            "lessThan": "b8fa99a3a11bdd77fef6b4a97f1021eb30b5ba40",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60461696a0b0fdaf240bc365b7983698f88ded2",
                            "lessThan": "382ff44716603a54f5fd238ddec6a2468e217612",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8eb225873246312660ccd68296959a7b213d0cdd",
                            "lessThan": "f65955340e0044f5c41ac799a01698ac7dee8a4e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "19d636b663e0e92951bba5fced929ca7fd25c552",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58acd10092268831e49de279446c314727101292",
                            "lessThan": "0f90099d18e3abdc01babf686f41f63fe04939c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58acd10092268831e49de279446c314727101292",
                            "lessThan": "3b0fcf5e29c0940e1169ce9c44f73edd98bdf12d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58acd10092268831e49de279446c314727101292",
                            "lessThan": "022152aaebe116a25c39818a07e175a8cd3c1e11",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1de376423a7759bf4fa25d6a038a4c1e035c9e1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.19.199",
                            "lessThan": "4.19.262",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.136",
                            "lessThan": "5.4.220",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.54",
                            "lessThan": "5.10.150",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13.6",
                            "lessThan": "5.14",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/sctp/auth.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.262",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.220",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.150",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.75",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.17",
                            "lessThanOrEqual": "5.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.3",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.199",
                                    "versionEndExcluding": "4.19.262"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b8fa99a3a11bdd77fef6b4a97f1021eb30b5ba40"
                },
                {
                    "url": "https://git.kernel.org/stable/c/382ff44716603a54f5fd238ddec6a2468e217612"
                },
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                    "url": "https://git.kernel.org/stable/c/f65955340e0044f5c41ac799a01698ac7dee8a4e"
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                },
                {
                    "url": "https://git.kernel.org/stable/c/022152aaebe116a25c39818a07e175a8cd3c1e11"
                }
            ],
            "title": "sctp: handle the error returned from sctp_auth_asoc_init_active_key",
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