GHSA-V9C2-2JFC-5C5C

Vulnerability from github – Published: 2024-07-05 09:33 – Updated: 2025-11-04 00:30
VLAI?
Details

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

mmc: davinci: Don't strip remove function when driver is builtin

Using __exit for the remove function results in the remove callback being discarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally.

This also fixes a W=1 modpost warning:

WARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in reference: davinci_mmcsd_driver+0x10 (section: .data) -> davinci_mmcsd_remove (section: .exit.text)

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-39484"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-05T07:15:10Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: davinci: Don\u0027t strip remove function when driver is builtin\n\nUsing __exit for the remove function results in the remove callback being\ndiscarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g.\nusing sysfs or hotplug), the driver is just removed without the cleanup\nbeing performed. This results in resource leaks. Fix it by compiling in the\nremove callback unconditionally.\n\nThis also fixes a W=1 modpost warning:\n\nWARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in\nreference: davinci_mmcsd_driver+0x10 (section: .data) -\u003e\ndavinci_mmcsd_remove (section: .exit.text)",
  "id": "GHSA-v9c2-2jfc-5c5c",
  "modified": "2025-11-04T00:30:51Z",
  "published": "2024-07-05T09:33:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39484"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55c421b364482b61c4c45313a535e61ed5ae4ea3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ee241f72edc6dce5051a5f100eab6cc019d873e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ff7cfa02baabec907f6f29ea76634e6256d2ec4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7590da4c04dd4aa9c262da0231e978263861c6eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aea35157bb9b825faa0432bd0f7fbea37ff39aa1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "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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