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CVE-2026-46323 net: gro: don't merge zcopy skbs

🗓️ 09 Jun 2026 12:11:15Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

Fixed a GRO merge error that could cause use-after-free when zero-copy fragments are involved.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/gro.c"
    ],
    "versions": [
      {
        "version": "753f1ca4e1e50248a1b760c9774d6d6b354562cc",
        "lessThan": "3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "753f1ca4e1e50248a1b760c9774d6d6b354562cc",
        "lessThan": "1f9c828556416fbe3f49386708ce999fc4d4da06",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "753f1ca4e1e50248a1b760c9774d6d6b354562cc",
        "lessThan": "479084ae0e1d9cb7929cb4298d35623de189f80a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "753f1ca4e1e50248a1b760c9774d6d6b354562cc",
        "lessThan": "e334cbf3388fd9334503a778a82d9e9f14dd2f71",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "753f1ca4e1e50248a1b760c9774d6d6b354562cc",
        "lessThan": "44bea2032af0425e4ce6d26a8af0ede79db49ec1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "753f1ca4e1e50248a1b760c9774d6d6b354562cc",
        "lessThan": "4db79a322db8c97f7b73b8a347395ef4d685eb40",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/gro.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.142",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.92",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Jun 2026 12:00Current
CVSS 3.17.8
EPSS0.00129
29