{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53391",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-17T14:54:09.737Z",
        "datePublished": "2025-09-18T13:33:33.602Z",
        "dateUpdated": "2026-05-11T19:44:03.015Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:44:03.015Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nshmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs\n\nAs the ramfs-based tmpfs uses ramfs_init_fs_context() for the\ninit_fs_context method, which allocates fc->s_fs_info, use ramfs_kill_sb()\nto free it and avoid a memory leak."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ramfs/inode.c",
                        "include/linux/ramfs.h",
                        "mm/shmem.c"
                    ],
                    "versions": [
                        {
                            "version": "c3b1b1cbf002e65a3cabd479e68b5f35886a26db",
                            "lessThan": "5fada375113767b3b57f1b04f7a4fe64ffaa626f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c3b1b1cbf002e65a3cabd479e68b5f35886a26db",
                            "lessThan": "487f229efea80c00dd7397547ec4f25fb8999d99",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c3b1b1cbf002e65a3cabd479e68b5f35886a26db",
                            "lessThan": "1f34bf8b442c6d720e7fa6f15e8702427e48aea9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c3b1b1cbf002e65a3cabd479e68b5f35886a26db",
                            "lessThan": "ebe07db840992a3886694ac3d303b06f4b70ce00",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c3b1b1cbf002e65a3cabd479e68b5f35886a26db",
                            "lessThan": "36ce9d76b0a93bae799e27e4f5ac35478c676592",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ramfs/inode.c",
                        "include/linux/ramfs.h",
                        "mm/shmem.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.30",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.30",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.188",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.121",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.39",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4.4",
                            "lessThanOrEqual": "6.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.5",
                            "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": "2.6.30",
                                    "versionEndExcluding": "5.10.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "5.15.121"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "6.1.39"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "6.4.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "6.5"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5fada375113767b3b57f1b04f7a4fe64ffaa626f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/487f229efea80c00dd7397547ec4f25fb8999d99"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1f34bf8b442c6d720e7fa6f15e8702427e48aea9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ebe07db840992a3886694ac3d303b06f4b70ce00"
                },
                {
                    "url": "https://git.kernel.org/stable/c/36ce9d76b0a93bae799e27e4f5ac35478c676592"
                }
            ],
            "title": "shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2023-53391",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-01-14T18:59:10.291580Z"
                            }
                        }
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "description": "CWE-noinfo Not enough information"
                            }
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-14T19:03:05.597Z"
                }
            }
        ]
    }
}