{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90152",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.789Z",
        "datePublished": "2026-09-17T16:06:45.641Z",
        "dateUpdated": "2026-10-21T12:50:08.817Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:50:08.817Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix session leak in ksmbd_session_register()\n\nSee the procedure below:\n\n  smb2_sess_setup\n    ksmbd_smb2_session_create\n      __session_create\n        atomic_set(&sess->refcnt, 2)\n        hash_add(sessions_table, &sess->hlist, sess->id)\n    ksmbd_session_register\n      xa_store(&conn->sessions, sess->id, sess) // fail\n    ksmbd_user_session_put\n      atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed\n\nRemove the session from sessions_table and drop its table reference if\nxa_store() fails."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/server/mgmt/user_session.c"
                    ],
                    "versions": [
                        {
                            "version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
                            "lessThan": "988f99bfddda4e2d1da5f6e98b237dd85e123cee",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
                            "lessThan": "03a22a003f41b182245e6c71fe565e277cff7094",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
                            "lessThan": "b967a595fb735d313a8676b2ca6a4cba38506482",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
                            "lessThan": "55c677619084f9c9fa4146d933cc8ccafc924c87",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
                            "lessThan": "99b25b046e47e4904373cfeb445c5483f1633d88",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "708c304b583d789957399dd8237f212cf8ad1e4d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d270631c21e68fb8016d6e231d022d7023a2df6f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02f41d88f15d6b7d523e52cc3f87488f57e9265b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.15.145",
                            "lessThan": "5.16",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.29",
                            "lessThan": "6.2",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.16",
                            "lessThan": "6.3",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.2",
                            "lessThan": "6.4",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/server/mgmt/user_session.c"
                    ],
                    "versions": [
                        {
                            "version": "6.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.4",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.29"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/988f99bfddda4e2d1da5f6e98b237dd85e123cee"
                },
                {
                    "url": "https://git.kernel.org/stable/c/03a22a003f41b182245e6c71fe565e277cff7094"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b967a595fb735d313a8676b2ca6a4cba38506482"
                },
                {
                    "url": "https://git.kernel.org/stable/c/55c677619084f9c9fa4146d933cc8ccafc924c87"
                },
                {
                    "url": "https://git.kernel.org/stable/c/99b25b046e47e4904373cfeb445c5483f1633d88"
                }
            ],
            "title": "smb/server: fix session leak in ksmbd_session_register()",
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}