GHSA-HFCH-PVJ6-JWPC

Vulnerability from github – Published: 2025-09-16 18:31 – Updated: 2025-12-02 00:31
VLAI?
Details

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

mmc: rtsx_usb_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 calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-50347"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-16T17:15:34Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: rtsx_usb_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 calling mmc_free_host() in the\nerror path, besides, led_classdev_unregister() and pm_runtime_disable() also\nneed be called.",
  "id": "GHSA-hfch-pvj6-jwpc",
  "modified": "2025-12-02T00:31:10Z",
  "published": "2025-09-16T18:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50347"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1491667d5450778a265eddddd294219acfd648cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fa922c7a3dd623fd59f1af50e8896fd9ca7f654"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89303ddbb502c3bc8edbf864f9f85500c8fe07e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/937112e991ed25d1727d878734adcbef3b900274"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a522e26a20a43dcfbef9ee9f71ed803290e852b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7ad7278be401b09c9f9a9f522cf4c449c7fd489"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df683201c7ffbd21a806a7cad657b661c5ebfb6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e598c9683fe1cf97c2b11b800cc3cee072108220"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc38a5a10e9e5a75eb9189854abeb8405b214cc9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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