mtd: rawnand: serialize lock/unlock against other NAND operations_CVE-2026-23434

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: serialize lock/unlock against other NAND operations\n\nnand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area\nwithout holding the NAND device lock. On controllers that implement\nSET_FEATURES via multiple low-level PIO commands, these can race with\nconcurrent UBI/UBIFS background erase/write operations that hold the\ndevice lock, resulting in cmd_pending conflicts on the NAND controller.\n\nAdd nand_get_device()/nand_release_device() around the lock/unlock\noperations to serialize them against all other NAND controller access.",
    "published": "2026-04-03T15:15:19.450Z",
    "modified": "2026-04-27T14:02:23.065Z",
    "type": "cve",
    "title": "mtd: rawnand: serialize lock/unlock against other NAND operations",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9\nhttps://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba\nhttps://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b\nhttps://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d\nhttps://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2\nhttps://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04\nhttps://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d\nhttps://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95",
    "id": "CVE-2026-23434",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088\nLinux Linux 5.7",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
    "vendor": "Linux",
    "ai_description": "",
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    "ai_score": 0
}