smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/server/auth.c",
                        "fs/smb/server/mgmt/user_config.c"
                    ],
                    "versions": [
                        {
                            "version": "8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320",
                            "lessThan": "4d6fe49fa3e7fbd779c761518e6572e340233c9b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab",
                            "lessThan": "c9f2872e91b9fe99c1d0ba768906f7aeb48c8517",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab",
                            "lessThan": "7a98c3b903b10c4d6176948254012b5ca24b071b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab",
                            "lessThan": "abb5146b2d8197d695ea9eaa0847c73e34f00985",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab",
                            "lessThan": "1c3ebf832d010c08afe1359215d4121cb1ed2de5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.141",
                            "lessThan": "6.6.157",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/server/auth.c",
                        "fs/smb/server/mgmt/user_config.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }