GHSA-PR22-X636-XP32

Vulnerability from github – Published: 2024-07-29 18:30 – Updated: 2026-05-12 12:32
VLAI
Details

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

pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER

In create_pinctrl(), pinctrl_maps_mutex is acquired before calling add_setting(). If add_setting() returns -EPROBE_DEFER, create_pinctrl() calls pinctrl_free(). However, pinctrl_free() attempts to acquire pinctrl_maps_mutex, which is already held by create_pinctrl(), leading to a potential deadlock.

This patch resolves the issue by releasing pinctrl_maps_mutex before calling pinctrl_free(), preventing the deadlock.

This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

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-2024-42090"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T17:15:11Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER\n\nIn create_pinctrl(), pinctrl_maps_mutex is acquired before calling\nadd_setting(). If add_setting() returns -EPROBE_DEFER, create_pinctrl()\ncalls pinctrl_free(). However, pinctrl_free() attempts to acquire\npinctrl_maps_mutex, which is already held by create_pinctrl(), leading to\na potential deadlock.\n\nThis patch resolves the issue by releasing pinctrl_maps_mutex before\ncalling pinctrl_free(), preventing the deadlock.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc.",
  "id": "GHSA-pr22-x636-xp32",
  "modified": "2026-05-12T12:32:03Z",
  "published": "2024-07-29T18:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42090"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04"
    },
    {
      "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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