ghsa-x2mc-jwgp-h2fq
Vulnerability from github
Published
2024-03-01 00:30
Modified
2024-03-01 00:30
Details

In the Linux kernel, the following vulnerability has been resolved:

mtd: require write permissions for locking and badblock ioctls

MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK is always write-once.

MEMSETBADBLOCK modifies the bad block table.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47055"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T23:15:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: require write permissions for locking and badblock ioctls\n\nMEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require\nwrite permission. Depending on the hardware MEMLOCK might even be\nwrite-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK\nis always write-once.\n\nMEMSETBADBLOCK modifies the bad block table.",
  "id": "GHSA-x2mc-jwgp-h2fq",
  "modified": "2024-03-01T00:30:28Z",
  "published": "2024-03-01T00:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47055"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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