{"id":"CVE-2023-53473","revision":"0fd6c7ca01334b319a18db7b6079a0b9","records":[{"revision":"0fd6c7ca01334b319a18db7b6079a0b9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53473","aliases":[],"title":"ext4: improve error handling from ext4_dirhash()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: improve error handling from ext4_dirhash()\n\nThe ext4_dirhash() will *almost* never fail, especially when the hash\ntree feature was first introduced.  However, with the addition of\nsupport of encrypted, casefolded file names, that function can most\ncertainly fail today.\n\nSo make sure the callers of ext4_dirhash() properly check for\nfailures, and reflect the errors back up to their callers.","state":0,"publishedAt":"2025-10-01T11:42:42.875+00:00","modifiedAt":"2026-10-15T21:41:28.341+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/ext4/hash.c\",\n                        \"fs/ext4/namei.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"b886ee3e778ec2ad43e276fd378ab492cf6819b7\",\n                            \"lessThan\": \"b2531936118deb3f479c4fa1bcd787b74b8faa6a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b886ee3e778ec2ad43e276fd378ab492cf6819b7\",\n                            \"lessThan\": \"f68876aeef96ef8b708ab10b9cb47ce0a5adb424\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b886ee3e778ec2ad43e276fd378ab492cf6819b7\",\n                            \"lessThan\": \"70d579aefa652a06af97e013e3fbbabbe5a43553\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b886ee3e778ec2ad43e276fd378ab492cf6819b7\",\n                            \"lessThan\": \"c1fae027da61fe8e7eb99f7244297e81bc0f1e43\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b886ee3e778ec2ad43e276fd378ab492cf6819b7\",\n                            \"lessThan\": \"4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/ext4/hash.c\",\n                        \"fs/ext4/namei.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.112\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.29\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.2.16\",\n                            \"lessThanOrEqual\": \"6.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.3.3\",\n                            \"lessThanOrEqual\": \"6.3.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.4\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6a","https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424","https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553","https://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43","https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53473","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53473","identifiers":["CVE-2023-53473"]},"retained":false,"historicalAffected":[]}],"coverage":[]}