{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74608",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.920Z",
        "datePublished": "2026-08-22T15:31:55.298Z",
        "dateUpdated": "2026-08-22T15:31:55.298Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:31:55.298Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Fix use-after-free in cifs_try_adding_channels()\n\ncifs_try_adding_channels() takes a temporary reference to an interface\nbefore dropping iface_lock. If cifs_ses_add_channel() fails, it drops\nthat reference and then increments iface->weight_fulfilled.\n\nA concurrent interface list refresh can remove the list reference while\nchannel creation is in progress. In that case, the failure-path\nkref_put() releases the last reference and frees iface. Updating\nweight_fulfilled afterward then accesses freed memory.\n\nIncrement weight_fulfilled before dropping the temporary reference,\nkeeping iface alive for the final access."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/sess.c"
                    ],
                    "versions": [
                        {
                            "version": "cbc53148cc0946b72d62a3c53870cb22ce4ec284",
                            "lessThan": "64d7584e62ac8cdc750455c5fdc6008fc2de4f06",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cff97d683a083b862a8bb24309e0f4d2d928128a",
                            "lessThan": "c292d4686f717c03e5022fc4ae7c782f39a94915",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0",
                            "lessThan": "47dfac48bce7198ad4f1a388fc8c9491f878ac3b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0",
                            "lessThan": "1ffacbadc14530e55b8d86f7b917524f6a0fb891",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0",
                            "lessThan": "1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0",
                            "lessThan": "4986410316b1ae0e63c6ce418e4eb196723626e7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "22a6c5b3425f327e7f4c3606a72277dce82c7d83",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.1.78",
                            "lessThan": "6.1.183",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.17",
                            "lessThan": "6.6.152",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.7.5",
                            "lessThan": "6.8",
                            "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/client/sess.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.152",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.45",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.9",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.1.78",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.17",
                                    "versionEndExcluding": "6.6.152"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7.5"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/64d7584e62ac8cdc750455c5fdc6008fc2de4f06"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c292d4686f717c03e5022fc4ae7c782f39a94915"
                },
                {
                    "url": "https://git.kernel.org/stable/c/47dfac48bce7198ad4f1a388fc8c9491f878ac3b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1ffacbadc14530e55b8d86f7b917524f6a0fb891"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4986410316b1ae0e63c6ce418e4eb196723626e7"
                }
            ],
            "title": "smb: client: Fix use-after-free in cifs_try_adding_channels()",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}