CVE-2025-71071 (GCVE-0-2025-71071)
Vulnerability from cvelistv5
Published
2026-01-13 15:31
Modified
2026-02-09 08:34
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: fix use-after-free on probe deferral The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers. Fix this by keeping the references as expected while the iommu driver is bound.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8412e5dd24ffc8bc21a00bfaa0b80d4596cdc9da
Version: 26593928564cf5b576ff05d3cbd958f57c9534bb
Version: 26593928564cf5b576ff05d3cbd958f57c9534bb
Version: 26593928564cf5b576ff05d3cbd958f57c9534bb
Version: 26593928564cf5b576ff05d3cbd958f57c9534bb
Version: 51080de72e26771f0ed9d44982974279ccbc92b8
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/mtk_iommu.c"
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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": "6.2"
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              "version": "0",
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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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\niommu/mediatek: fix use-after-free on probe deferral\n\nThe driver is dropping the references taken to the larb devices during\nprobe after successful lookup as well as on errors. This can\npotentially lead to a use-after-free in case a larb device has not yet\nbeen bound to its driver so that the iommu driver probe defers.\n\nFix this by keeping the references as expected while the iommu driver is\nbound."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:34:21.856Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/896ec55da3b90bdb9fc04fedc17ad8c359b2eee5"
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        {
          "url": "https://git.kernel.org/stable/c/5c04217d06a1161aaf36267e9d971ab6f847d5a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ef70a0b104ae8011811f60bcfaa55ff49385171"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8a"
        },
        {
          "url": "https://git.kernel.org/stable/c/de83d4617f9fe059623e97acf7e1e10d209625b5"
        }
      ],
      "title": "iommu/mediatek: fix use-after-free on probe deferral",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71071",
    "datePublished": "2026-01-13T15:31:25.400Z",
    "dateReserved": "2026-01-13T15:30:19.647Z",
    "dateUpdated": "2026-02-09T08:34:21.856Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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