md/raid5: validate payload size before accessing journal metadata

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/md/raid5-cache.c"
                    ],
                    "versions": [
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "c96c6f01d84b5c67db1bf1cc8591c0b7146826fc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "ef4851d8324fd978ca1ff9ec76a275438f887743",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "28d3ff7109c66e99dc1b7cddacb5c760849620ef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "33698bd1b2db9764a29df7751533d33967ff5c98",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "73ce72edd113374801045924d4417199963f73a3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "406aa86394ead347c47428fb51b6359bdaa2257d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4c625c67362b3940f619c1a836b4e8329106658",
                            "lessThan": "b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/md/raid5-cache.c"
                    ],
                    "versions": [
                        {
                            "version": "4.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.86",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.27",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }