CVE-2025-23140 (GCVE-0-2025-23140)
Vulnerability from cvelistv5
Published
2025-05-01 12:55
Modified
2025-05-26 05:19
Severity ?
Summary
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]
References
Impacted products
Vendor Product Version
Linux Linux Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
Version: e03327122e2c8e6ae4565ef5b3d3cbe4364546a1
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/misc/pci_endpoint_test.c"
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      "cpeApplicability": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:19:18.948Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/705be96504779e4a333ea042b4779ea941f0ace9"
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        {
          "url": "https://git.kernel.org/stable/c/e516e187bf32d8decc7c7d0025ae4857cad13c0e"
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        {
          "url": "https://git.kernel.org/stable/c/54c9f299ad7d7c4be5d271ed12d01a59e95b8907"
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          "url": "https://git.kernel.org/stable/c/9d5118b107b1a2353ed0dff24404aee2e6b7ca0a"
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          "url": "https://git.kernel.org/stable/c/5a4b7181213268c9b07bef8800905528435db44a"
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          "url": "https://git.kernel.org/stable/c/0557e70e2aeba8647bf5a950820b67cfb86533db"
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        {
          "url": "https://git.kernel.org/stable/c/f6cb7828c8e17520d4f5afb416515d3fae1af9a9"
        }
      ],
      "title": "misc: pci_endpoint_test: Avoid issue of interrupts remaining after request_irq error",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-23140",
    "datePublished": "2025-05-01T12:55:30.885Z",
    "dateReserved": "2025-01-11T14:28:41.512Z",
    "dateUpdated": "2025-05-26T05:19:18.948Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-23140\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T13:15:49.807\",\"lastModified\":\"2025-05-02T13:53:20.943\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc: pci_endpoint_test: evitar el problema de las interrupciones restantes despu\u00e9s del error request_irq Despu\u00e9s de que devm_request_irq() falla con un error en pci_endpoint_test_request_irq(), se llama a pci_endpoint_test_free_irq_vectors() asumiendo que se han liberado todas las IRQ. Sin embargo, algunas IRQ solicitadas permanecen sin liberar, por lo que a\u00fan quedan entradas /proc/irq/* restantes y esto genera un WARN() con el siguiente mensaje: remove_proc_entry: eliminando el directorio no vac\u00edo \u0027irq/30\u0027, filtrando al menos \u0027pci-endpoint-test.0\u0027 ADVERTENCIA: CPU: 0 PID: 202 en fs/proc/generic.c:719 remove_proc_entry +0x190/0x19c Para resolver este problema, establezca el n\u00famero de IRQ restantes en test-\u0026gt;num_irqs y libere las IRQ con anticipaci\u00f3n llamando a pci_endpoint_test_release_irq(). [kwilczynski: registro de confirmaciones]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0557e70e2aeba8647bf5a950820b67cfb86533db\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/54c9f299ad7d7c4be5d271ed12d01a59e95b8907\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5a4b7181213268c9b07bef8800905528435db44a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/705be96504779e4a333ea042b4779ea941f0ace9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/770407f6173f4f39f4e2c1b54422b79ce6c98bdb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d5118b107b1a2353ed0dff24404aee2e6b7ca0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e516e187bf32d8decc7c7d0025ae4857cad13c0e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f6cb7828c8e17520d4f5afb416515d3fae1af9a9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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