GHSA-6FCQ-VJ78-W895
Vulnerability from github – Published: 2025-10-07 18:31 – Updated: 2026-02-06 18:30In the Linux kernel, the following vulnerability has been resolved:
ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup}
If the filename casefolding fails, we'll be leaking memory from the fscrypt_name struct, namely from the 'crypto_buf.name' member.
Make sure we free it in the error path on both ext4_fname_setup_filename() and ext4_fname_prepare_lookup() functions.
{
"affected": [],
"aliases": [
"CVE-2023-53662"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-07T16:15:49Z",
"severity": "MODERATE"
},
"details": "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\u0027ll be leaking memory from the\nfscrypt_name struct, namely from the \u0027crypto_buf.name\u0027 member.\n\nMake sure we free it in the error path on both ext4_fname_setup_filename()\nand ext4_fname_prepare_lookup() functions.",
"id": "GHSA-6fcq-vj78-w895",
"modified": "2026-02-06T18:30:27Z",
"published": "2025-10-07T18:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53662"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/36daf050be3f6f067631dc52054de2d3b7cc849f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7ca4b085f430f3774c3838b3da569ceccd6a0177"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/98fc9c2cc45cfcb56961a73de3ec69b474063fc0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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