{"id":"CVE-2026-99273","revision":"0bde8801db864261b74b148a05ecd610","records":[{"revision":"0bde8801db864261b74b148a05ecd610","observedAt":"2026-11-07T16:07:43.282+00:00","statement":{"source":"cve-program","id":"CVE-2026-99273","aliases":[],"title":"ksmbd: reserve space for the UTF-16 terminator in stream info","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: reserve space for the UTF-16 terminator in stream info\n\nsmb_strtoUTF16() always writes a terminating zero UTF-16 unit after the\nconverted characters, but get_file_stream_info() budgets only\nsizeof(struct smb2_file_stream_info) + streamlen * 2 for a stream entry\nand sizeof(struct smb2_file_stream_info) + 7 * 2 for the trailing\n\"::$DATA\" entry. When an entry exactly fills the 448-byte small response\nbuffer, the terminator is written two bytes past the allocation.\n\nReserve one extra UTF-16 unit in both budget checks. The terminator is\nnot part of the wire format, so the reported lengths are unchanged.","state":0,"publishedAt":"2026-11-07T14:08:45.585+00:00","modifiedAt":"2026-11-07T14:08:45.585+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\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"06a751809ebd33e95b05bf733697318a17a4872b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"0e64f89563164719ceb1aa33f2a8bfd6391fa340\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"a025c4991a7d83edc4dd339e3ea86d8ff6226eca\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.18.61\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.3.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\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\": \"6.18.61\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3.2\",\n                            \"lessThanOrEqual\": \"7.3.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.4-rc1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/06a751809ebd33e95b05bf733697318a17a4872b","https://git.kernel.org/stable/c/0e64f89563164719ceb1aa33f2a8bfd6391fa340","https://git.kernel.org/stable/c/a025c4991a7d83edc4dd339e3ea86d8ff6226eca"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99273","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-99273","identifiers":["CVE-2026-99273"]},"retained":false,"historicalAffected":[]}],"coverage":[]}