smb/client: zero-initialize stack-allocated cifs_open_info_data

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/link.c",
                        "fs/smb/client/smb1ops.c",
                        "fs/smb/client/smb2ops.c"
                    ],
                    "versions": [
                        {
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                            "status": "affected",
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                        },
                        {
                            "version": "fc2f2011d3d84b56f536b4a25a4bb2fa1b13d520",
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                        },
                        {
                            "version": "83d3bc866530a36a465b47cce4d2a9def2411960",
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                        {
                            "version": "6.6.113",
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                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.54",
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                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.4",
                            "lessThan": "6.18",
                            "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/client/link.c",
                        "fs/smb/client/smb1ops.c",
                        "fs/smb/client/smb2ops.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }