{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74386",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.890Z",
        "datePublished": "2026-08-15T05:59:01.786Z",
        "dateUpdated": "2026-08-17T05:18:24.557Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:18:24.557Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: fix page fragment cache leak in error path\n\nIn nvmet_tcp_alloc_queue(), when a connection is closed during the\nallocation process (e.g., nvmet_tcp_set_queue_sock() returns -ENOTCONN),\nthe error handling jumps to out_destroy_sq and then to out_ida_remove\nwithout draining the page fragment cache.\n\nAlthough nvmet_tcp_free_cmd() is called in some error paths to release\nindividual page fragments, the underlying page cache reference held by\nqueue->pf_cache is never released. The first allocation using pf_cache\nis the call to nvmet_tcp_alloc_cmd() for queue->connect, which happens\nafter ida_alloc() returns successfully. This results in a page leak each\ntime a connection fails during allocation, which could lead to memory\nexhaustion over time if connections are repeatedly opened and closed.\n\nFix this by calling page_frag_cache_drain() before freeing the queue\nstructure in the out_ida_remove label."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/target/tcp.c"
                    ],
                    "versions": [
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "a43a9abc1ebf663f0aa56a729106f68dd9c77da6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "ba3209704b3cd46961e4e081af5c52a780785648",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "5fbe83a374f09561a0f0c1f4aa021501ffd681eb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "4dae393956093c807212918fd91a8fc70df15338",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/target/tcp.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "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": "5.0",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a43a9abc1ebf663f0aa56a729106f68dd9c77da6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ba3209704b3cd46961e4e081af5c52a780785648"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5fbe83a374f09561a0f0c1f4aa021501ffd681eb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4dae393956093c807212918fd91a8fc70df15338"
                }
            ],
            "title": "nvmet-tcp: fix page fragment cache leak in error path",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}