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CVE-2025-39984 net: tun: Update napi->skb after XDP process

🗓️ 15 Oct 2025 07:56:03Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

CVE-2025-39984: tun driver updates napi skb after XDP to prevent use-after-free in gro.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/tun.c"
    ],
    "versions": [
      {
        "version": "e6d5dbdd20aa6a86974af51deb9414cd2e7794cb",
        "lessThan": "953200d56fc23eebf80a5ad9eed6e2e8a3065093",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e6d5dbdd20aa6a86974af51deb9414cd2e7794cb",
        "lessThan": "1697577e1669b0321d02cd848384a5d33e284296",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e6d5dbdd20aa6a86974af51deb9414cd2e7794cb",
        "lessThan": "1091860a16a86ccdd77c09f2b21a5f634f5ab9ec",
        "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/net/tun.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.50",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.10",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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