{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53662",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-07T15:16:59.662Z",
        "datePublished": "2025-10-07T15:21:21.703Z",
        "dateUpdated": "2026-05-11T19:49:29.602Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:49:29.602Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup}\n\nIf the filename casefolding fails, we'll be leaking memory from the\nfscrypt_name struct, namely from the 'crypto_buf.name' member.\n\nMake sure we free it in the error path on both ext4_fname_setup_filename()\nand ext4_fname_prepare_lookup() functions."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/crypto.c"
                    ],
                    "versions": [
                        {
                            "version": "1ae98e295fa2577fb5e492200c58d10230e00e99",
                            "lessThan": "98fc9c2cc45cfcb56961a73de3ec69b474063fc0",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "1ae98e295fa2577fb5e492200c58d10230e00e99",
                            "lessThan": "1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1ae98e295fa2577fb5e492200c58d10230e00e99",
                            "lessThan": "36daf050be3f6f067631dc52054de2d3b7cc849f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1ae98e295fa2577fb5e492200c58d10230e00e99",
                            "lessThan": "7ca4b085f430f3774c3838b3da569ceccd6a0177",
                            "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/ext4/crypto.c"
                    ],
                    "versions": [
                        {
                            "version": "5.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.199",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.54",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.5.4",
                            "lessThanOrEqual": "6.5.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6",
                            "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": "5.13",
                                    "versionEndExcluding": "5.15.199"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.1.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.5.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "6.6"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/98fc9c2cc45cfcb56961a73de3ec69b474063fc0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/36daf050be3f6f067631dc52054de2d3b7cc849f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7ca4b085f430f3774c3838b3da569ceccd6a0177"
                }
            ],
            "title": "ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup}",
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}