{"id":"CVE-2025-37778","revision":null,"records":[{"revision":"99d15ffe30d74d39890e28c37da4c47f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37778","aliases":[],"title":"ksmbd: Fix dangling pointer in krb_authenticate","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: Fix dangling pointer in krb_authenticate\n\nkrb_authenticate frees sess->user and does not set the pointer\nto NULL. It calls ksmbd_krb5_authenticate to reinitialise\nsess->user but that function may return without doing so. If\nthat happens then smb2_sess_setup, which calls krb_authenticate,\nwill be accessing free'd memory when it later uses sess->user.","state":0,"publishedAt":"2025-05-01T13:07:16.472+00:00","modifiedAt":"2026-10-15T21:51:59.708+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/smb2pdu.c\"\n ],\n \"versions\": [\n {\n \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n \"lessThan\": \"b61f04d5d73c53d183019bafe22fb700a739bac5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n \"lessThan\": \"d5b554bc8d554ed6ddf443d3db2fad9f665cec10\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n \"lessThan\": \"1db2451de23e98bc864c6a6e52aa0d82c91cb325\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n \"lessThan\": \"6e30c0e10210c714f3d4453dc258d4abcc70364e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n \"lessThan\": \"e83e39a5f6a01a81411a4558a59a10f87aa88dd6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0626e6641f6b467447c81dd7678a69c66f7746cf\",\n \"lessThan\": \"1e440d5b25b7efccb3defe542a73c51005799a5f\",\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/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\": \"5.15.203\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.135\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.88\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.25\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.4\",\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/b61f04d5d73c53d183019bafe22fb700a739bac5","https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10","https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325","https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e","https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6","https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37778","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37778","identifiers":["CVE-2025-37778"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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