ghsa-vvgj-gr7g-xwww
Vulnerability from github
Published
2025-05-01 15:31
Modified
2025-11-06 00:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

misc: pci_endpoint_test: Avoid issue of interrupts remaining after request_irq error

After devm_request_irq() fails with error in pci_endpoint_test_request_irq(), the pci_endpoint_test_free_irq_vectors() is called assuming that all IRQs have been released.

However, some requested IRQs remain unreleased, so there are still /proc/irq/* entries remaining, and this results in WARN() with the following message:

remove_proc_entry: removing non-empty directory 'irq/30', leaking at least 'pci-endpoint-test.0' WARNING: CPU: 0 PID: 202 at fs/proc/generic.c:719 remove_proc_entry +0x190/0x19c

To solve this issue, set the number of remaining IRQs to test->num_irqs, and release IRQs in advance by calling pci_endpoint_test_release_irq().

[kwilczynski: commit log]

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-23140"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T13:15:49Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: pci_endpoint_test: Avoid issue of interrupts remaining after request_irq error\n\nAfter devm_request_irq() fails with error in pci_endpoint_test_request_irq(),\nthe pci_endpoint_test_free_irq_vectors() is called assuming that all IRQs\nhave been released.\n\nHowever, some requested IRQs remain unreleased, so there are still\n/proc/irq/* entries remaining, and this results in WARN() with the\nfollowing message:\n\n  remove_proc_entry: removing non-empty directory \u0027irq/30\u0027, leaking at least \u0027pci-endpoint-test.0\u0027\n  WARNING: CPU: 0 PID: 202 at fs/proc/generic.c:719 remove_proc_entry +0x190/0x19c\n\nTo solve this issue, set the number of remaining IRQs to test-\u003enum_irqs,\nand release IRQs in advance by calling pci_endpoint_test_release_irq().\n\n[kwilczynski: commit log]",
  "id": "GHSA-vvgj-gr7g-xwww",
  "modified": "2025-11-06T00:30:25Z",
  "published": "2025-05-01T15:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23140"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0557e70e2aeba8647bf5a950820b67cfb86533db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54c9f299ad7d7c4be5d271ed12d01a59e95b8907"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a4b7181213268c9b07bef8800905528435db44a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/705be96504779e4a333ea042b4779ea941f0ace9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/770407f6173f4f39f4e2c1b54422b79ce6c98bdb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d5118b107b1a2353ed0dff24404aee2e6b7ca0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e516e187bf32d8decc7c7d0025ae4857cad13c0e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6cb7828c8e17520d4f5afb416515d3fae1af9a9"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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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