ghsa-cjfm-hc6q-wr8h
Vulnerability from github
Published
2025-09-17 15:30
Modified
2025-09-17 15:30
Details

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

mmc: wmt-sdmmc: fix return value check of mmc_add_host()

mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path.

So fix this by checking the return value and goto error path which will call mmc_free_host(), besides, clk_disable_unprepare() also needs be called.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50353"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-17T15:15:33Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: wmt-sdmmc: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value, the memory\nthat allocated in mmc_alloc_host() will be leaked and it will lead a kernel\ncrash because of deleting not added device in the remove path.\n\nSo fix this by checking the return value and goto error path which will call\nmmc_free_host(), besides, clk_disable_unprepare() also needs be called.",
  "id": "GHSA-cjfm-hc6q-wr8h",
  "modified": "2025-09-17T15:30:37Z",
  "published": "2025-09-17T15:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50353"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29276d56f6ed138db0f38cd31aedc0b725c8c76c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70b0620afab3c69d95a7e2dd7ceff162a21c4009"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bedf64dda84b29151e41591d8ded9ff0e6d336a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b40ac3b696a9c84b36211ef0c3f5a422650c101b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7a328cea791cc2769b6417943939420913b4a46"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb7a2d516d4fbd165c07877a20feccb047342b1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecd6f77af3478f5223aa4011642a891b7dc91228"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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