ghsa-wc2g-rvvj-x242
Vulnerability from github
Published
2024-05-22 09:31
Modified
2024-05-22 09:31
Details

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

scsi: core: Put LLD module refcnt after SCSI device is released

SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler.

Make sure to put LLD module refcnt after SCSI device is released.

Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47480"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-22T09:15:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Put LLD module refcnt after SCSI device is released\n\nSCSI host release is triggered when SCSI device is freed. We have to make\nsure that the low-level device driver module won\u0027t be unloaded before SCSI\nhost instance is released because shost-\u003ehostt is required in the release\nhandler.\n\nMake sure to put LLD module refcnt after SCSI device is released.\n\nFixes a kernel panic of \u0027BUG: unable to handle page fault for address\u0027\nreported by Changhui and Yi.",
  "id": "GHSA-wc2g-rvvj-x242",
  "modified": "2024-05-22T09:31:46Z",
  "published": "2024-05-22T09:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47480"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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