cve-2024-38629
Vulnerability from cvelistv5
Published
2024-06-21 10:18
Modified
2024-08-02 04:12
Severity ?
Summary
dmaengine: idxd: Avoid unnecessary destruction of file_ida
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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                "id": "CVE-2024-38629",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-21T13:46:11.658594Z",
                "version": "2.0.3"
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    "cna": {
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          "product": "Linux",
          "programFiles": [
            "drivers/dma/idxd/cdev.c"
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          "vendor": "Linux",
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Avoid unnecessary destruction of file_ida\n\nfile_ida is allocated during cdev open and is freed accordingly\nduring cdev release. This sequence is guaranteed by driver file\noperations. Therefore, there is no need to destroy an already empty\nfile_ida when the WQ cdev is removed.\n\nWorse, ida_free() in cdev release may happen after destruction of\nfile_ida per WQ cdev. This can lead to accessing an id in file_ida\nafter it has been destroyed, resulting in a kernel panic.\n\nRemove ida_destroy(\u0026file_ida) to address these issues."
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        "dateUpdated": "2024-07-15T06:49:24.013Z",
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      "title": "dmaengine: idxd: Avoid unnecessary destruction of file_ida",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-38629",
    "datePublished": "2024-06-21T10:18:20.239Z",
    "dateReserved": "2024-06-18T19:36:34.946Z",
    "dateUpdated": "2024-08-02T04:12:25.953Z",
    "state": "PUBLISHED"
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