{"id":"CVE-2025-37924","revision":"b31fd8fb78634369bff99056e01eada5","records":[{"revision":"b31fd8fb78634369bff99056e01eada5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37924","aliases":[],"title":"ksmbd: fix use-after-free in kerberos authentication","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in kerberos authentication\n\nSetting sess->user = NULL was introduced to fix the dangling pointer\ncreated by ksmbd_free_user. However, it is possible another thread could\nbe operating on the session and make use of sess->user after it has been\npassed to ksmbd_free_user but before sess->user is set to NULL.","state":0,"publishedAt":"2025-05-20T15:21:52.681+00:00","modifiedAt":"2026-10-15T21:52:04.26+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/smb/server/auth.c\",\n                        \"fs/smb/server/smb2pdu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n                            \"lessThan\": \"e34a33d5d7e87399af0a138bb32f6a3e95dd83d2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n                            \"lessThan\": \"b447463562238428503cfba1c913261047772f90\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n                            \"lessThan\": \"e18c616718018dfc440e4a2d2b94e28fe91b1861\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n                            \"lessThan\": \"28c756738af44a404a91b77830d017bb0c525890\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n                            \"lessThan\": \"e86e9134e1d1c90a960dd57f59ce574d27b9a124\",\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/smb/server/auth.c\",\n                        \"fs/smb/server/smb2pdu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.138\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.90\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.28\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14.6\",\n                            \"lessThanOrEqual\": \"6.14.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/e34a33d5d7e87399af0a138bb32f6a3e95dd83d2","https://git.kernel.org/stable/c/b447463562238428503cfba1c913261047772f90","https://git.kernel.org/stable/c/e18c616718018dfc440e4a2d2b94e28fe91b1861","https://git.kernel.org/stable/c/28c756738af44a404a91b77830d017bb0c525890","https://git.kernel.org/stable/c/e86e9134e1d1c90a960dd57f59ce574d27b9a124"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37924","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37924","identifiers":["CVE-2025-37924"]},"retained":false,"historicalAffected":[]}],"coverage":[]}