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CVE-2026-74684 net: tap: set skb->dev before parsing virtio net header in tap_get_user_xdp()

🗓️ 22 Aug 2026 15:32:50Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

NULL pointer deref in Linux kernel TAP driver tap_get_user_xdp() via virtio-net header parsing.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-74684
22 Aug 202615:32
cve
debiancve
Debian CVE
CVE-2026-74684
22 Aug 202615:32
debiancve
euvd
EUVD
EUVD-2026-64371
22 Aug 202615:32
euvd
nvd
NVD
CVE-2026-74684
22 Aug 202616:16
nvd
ptsecurity
Positive Technologies
PT-2026-79689
22 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/tap.c"
    ],
    "versions": [
      {
        "version": "924a9bc362a5223cd448ca08c3dde21235adc310",
        "lessThan": "8b444b126cd8e4473e652f529753ed4dd1360a9c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "924a9bc362a5223cd448ca08c3dde21235adc310",
        "lessThan": "164c31ee252ebd1ac8f44c2dfc5486b6d9a0379b",
        "status": "affected",
        "versionType": "git"
      },
      {
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        "lessThan": "3874892dd27d5387aa9a06f58d9060f18f351d24",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea3fb2ce5fa794d02135f5c079e05cd6fc3f545d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "54ef8243c3c8e90f1ea5792e6752e021a25c8eb3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca278267d6cd9544645731732455b6b20cb0e895",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "faa3baa2828c5e1c4374f3e60041f75c64f5fcb6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "99b1d3f74b9ef72c2f74c8e4c078e1bc0706e748",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4.14.226",
        "lessThan": "4.15",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.19.181",
        "lessThan": "4.20",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.4.106",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.10.24",
        "lessThan": "5.11",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.11.7",
        "lessThan": "5.12",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/tap.c"
    ],
    "versions": [
      {
        "version": "5.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.45",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.9",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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