of: reserved_mem: prevent OOB when too many dynamic regions are defined

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/of/of_reserved_mem.c"
                    ],
                    "versions": [
                        {
                            "version": "9a0fe62f93ede02c27aaca81112af1e59c8c0979",
                            "lessThan": "68d27250c9e81ab7764603e346c2b1017cb53adf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8a6e02d0c00e7b62e6acb74146878bb91e9e7e31",
                            "lessThan": "cfa7e2734877330d6c10e0f33953905486c4530c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8a6e02d0c00e7b62e6acb74146878bb91e9e7e31",
                            "lessThan": "de8ccbd6bf4efe7a059e2c483789936009e10f42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8a6e02d0c00e7b62e6acb74146878bb91e9e7e31",
                            "lessThan": "db3dbdfea1b8f38774419c5c2c14e4b81c48708d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.13",
                            "lessThan": "6.12.103",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/of/of_reserved_mem.c"
                    ],
                    "versions": [
                        {
                            "version": "6.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.103",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }