{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38429",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38429"
  ],
  "published": "2025-07-25T14:00:31Z",
  "summary": "bus: mhi: ep: Update read pointer only after buffer is written",
  "details": "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.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38429"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/44b9620e82bbec2b9a6ac77f63913636d84f96dc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f704a80d9fa268e51a6cc5242714502c3c1fa605"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0007ef098dab48f1ba58364c40b4809f1e21b130"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6f18d174b73d0ceeaa341f46c0986436b3aefc9a"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}