erofs: handle overlapped pclusters out of crafted images properly

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/erofs/zdata.c"
                    ],
                    "versions": [
                        {
                            "version": "8e6c8fa9f2e95c88a642521a5da19a8e31748846",
                            "lessThan": "c1172e65aad4b115392ea4c6e61e56e5b9b69df4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8e6c8fa9f2e95c88a642521a5da19a8e31748846",
                            "lessThan": "1bf7e414cac303c9aec1be67872e19be8b64980c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8e6c8fa9f2e95c88a642521a5da19a8e31748846",
                            "lessThan": "b9b30af0e86ffb485301ecd83b9129c9dfb7ebf8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8e6c8fa9f2e95c88a642521a5da19a8e31748846",
                            "lessThan": "9cfa199bcbbbba31cbf97b2786f44f4464f3f29a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8e6c8fa9f2e95c88a642521a5da19a8e31748846",
                            "lessThan": "9e2f9d34dd12e6e5b244ec488bcebd0c2d566c50",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/erofs/zdata.c"
                    ],
                    "versions": [
                        {
                            "version": "5.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.168",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.72",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.10.13",
                            "lessThanOrEqual": "6.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.11.2",
                            "lessThanOrEqual": "6.11.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }