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CVE-2025-39939 iommu/s390: Fix memory corruption when using identity domain

🗓️ 04 Oct 2025 07:31:02Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 19 Views

Linux kernel iommu s390 identity domain memory corruption fix by returning NULL for IOMMU counters.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/s390-iommu.c"
    ],
    "versions": [
      {
        "version": "64af12c6ec3afd7d44bc8b2044eee59f98059087",
        "lessThan": "17a58caf3863163c4a84a218a9649be2c8061443",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "64af12c6ec3afd7d44bc8b2044eee59f98059087",
        "lessThan": "b3506e9bcc777ed6af2ab631c86a9990ed97b474",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/s390-iommu.c"
    ],
    "versions": [
      {
        "version": "6.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.9",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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