CVE-2025-38429 (GCVE-0-2025-38429)
Vulnerability from cvelistv5
Published
2025-07-25 14:16
Modified
2025-07-28 04:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: ep: Update read pointer only after buffer is written Inside mhi_ep_ring_add_element, the read pointer (rd_offset) is updated before the buffer is written, potentially causing race conditions where the host sees an updated read pointer before the buffer is actually written. Updating rd_offset prematurely can lead to the host accessing an uninitialized or incomplete element, resulting in data corruption. Invoke the buffer write before updating rd_offset to ensure the element is fully written before signaling its availability.
References
Impacted products
Vendor Product Version
Linux Linux Version: bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34
Version: bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34
Version: bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34
Version: bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34
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{
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bus/mhi/ep/ring.c"
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          "vendor": "Linux",
          "versions": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: ep: Update read pointer only after buffer is written\n\nInside mhi_ep_ring_add_element, the read pointer (rd_offset) is updated\nbefore the buffer is written, potentially causing race conditions where\nthe host sees an updated read pointer before the buffer is actually\nwritten. Updating rd_offset prematurely can lead to the host accessing\nan uninitialized or incomplete element, resulting in data corruption.\n\nInvoke the buffer write before updating rd_offset to ensure the element\nis fully written before signaling its availability."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:21:55.358Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/44b9620e82bbec2b9a6ac77f63913636d84f96dc"
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      "title": "bus: mhi: ep: Update read pointer only after buffer is written",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38429",
    "datePublished": "2025-07-25T14:16:48.698Z",
    "dateReserved": "2025-04-16T04:51:24.015Z",
    "dateUpdated": "2025-07-28T04:21:55.358Z",
    "state": "PUBLISHED"
  },
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  }
}


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