md/raid5: validate payload size before accessing journal metadata_CVE-2026-46070

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: validate payload size before accessing journal metadata\n\nr5c_recovery_analyze_meta_block() and\nr5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a\njournal metadata block using on-disk payload size fields without\nvalidating them against the remaining space in the metadata block.\n\nA corrupted journal contains payload sizes extending beyond the PAGE_SIZE\nboundary can cause out-of-bounds reads when accessing payload fields or\ncomputing offsets.\n\nAdd bounds validation for each payload type to ensure the full payload\nfits within meta_size before processing.",
    "published": "2026-05-27T12:57:54.345Z",
    "modified": "2026-05-30T10:47:14.911Z",
    "type": "cve",
    "title": "md/raid5: validate payload size before accessing journal metadata",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/33698bd1b2db9764a29df7751533d33967ff5c98\nhttps://git.kernel.org/stable/c/c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e\nhttps://git.kernel.org/stable/c/73ce72edd113374801045924d4417199963f73a3\nhttps://git.kernel.org/stable/c/406aa86394ead347c47428fb51b6359bdaa2257d\nhttps://git.kernel.org/stable/c/b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9",
    "id": "CVE-2026-46070",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux b4c625c67362b3940f619c1a836b4e8329106658\nLinux Linux b4c625c67362b3940f619c1a836b4e8329106658\nLinux Linux b4c625c67362b3940f619c1a836b4e8329106658\nLinux Linux b4c625c67362b3940f619c1a836b4e8329106658\nLinux Linux b4c625c67362b3940f619c1a836b4e8329106658\nLinux Linux 4.10",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "b4c625c67362b3940f619c1a836b4e8329106658",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}