CVE-2026-80676 (GCVE-0-2026-80676)
Vulnerability from cvelistv5
Published
2026-08-28 06:49
Modified
2026-08-28 06:49
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]
References
Impacted products
Vendor Product Version
Linux Linux Version: d765edbb301c0e196015a59b17420558088ea33f
Version: d765edbb301c0e196015a59b17420558088ea33f
Version: d765edbb301c0e196015a59b17420558088ea33f
Version: d765edbb301c0e196015a59b17420558088ea33f
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hv/vmbus_drv.c",
            "include/linux/hyperv.h"
          ],
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          "vendor": "Linux",
          "versions": [
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "4.20"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
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              "status": "unaffected",
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      "cpeApplicability": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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\nDrivers: hv: vmbus: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus\u0027 match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:49:14.747Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d1cb12ae81d2f7a58b0b1cfb51862afca98e6058"
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          "url": "https://git.kernel.org/stable/c/0e2f0833556c8c5269deb457b89d538644a3b747"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fb010ea7ca98cd09a6d365260b769f627e73a76"
        },
        {
          "url": "https://git.kernel.org/stable/c/331d8900121a1d74ecd45cd2db742ddcb5a0a565"
        }
      ],
      "title": "Drivers: hv: vmbus: use generic driver_override infrastructure",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80676",
    "datePublished": "2026-08-28T06:49:14.747Z",
    "dateReserved": "2026-08-26T14:34:25.783Z",
    "dateUpdated": "2026-08-28T06:49:14.747Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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