{"id":"CVE-2026-64040","revision":"aca9e4cdeb934f84b976feaf26034437","records":[{"revision":"aca9e4cdeb934f84b976feaf26034437","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64040","aliases":[],"title":"cachefiles: Fix error return when vfs_mkdir() fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: Fix error return when vfs_mkdir() fails\n\nWhen vfs_mkdir() fails, the error code is not extracted from the\nreturned error pointer. This causes mkdir_error to be reached with\nret=0, which leads to returning ERR_PTR(0) (NULL) instead of a\nproper error pointer.\n\nFix this by extracting the error code from the error pointer when\nvfs_mkdir() fails.","state":0,"publishedAt":"2026-07-19T15:39:27.348+00:00","modifiedAt":"2026-10-15T10:07:58.219+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/cachefiles/namei.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"406fad7698f5bf21ab6b5ca195bf4b9e0b3990ed\",\n                            \"lessThan\": \"86f4c1586418d50203ee8d76cba5d7b148719a32\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"406fad7698f5bf21ab6b5ca195bf4b9e0b3990ed\",\n                            \"lessThan\": \"0940108d27c6995e02819ff832be11892f0b208b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"406fad7698f5bf21ab6b5ca195bf4b9e0b3990ed\",\n                            \"lessThan\": \"8a220d1c312c66194f4a33dd52d1fba42bc2b341\",\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/cachefiles/namei.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.11\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/86f4c1586418d50203ee8d76cba5d7b148719a32","https://git.kernel.org/stable/c/0940108d27c6995e02819ff832be11892f0b208b","https://git.kernel.org/stable/c/8a220d1c312c66194f4a33dd52d1fba42bc2b341"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64040","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64040","identifiers":["CVE-2026-64040"]},"retained":false,"historicalAffected":[]}],"coverage":[]}