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CVE-2026-72052 net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink

🗓️ 15 Aug 2026 05:52:09Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

ip6_gre changelink allows CAP_NET_ADMIN in dev netns to rewrite tunnels in another netns.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/ip6_gre.c"
    ],
    "versions": [
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "129f8939e5af683cec3a1a5edcb40a64636ad81e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "e3724dedf57761c6de52f4d604ec74f66fd61611",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "220162c9fedbe992da70d70f50a10da4f45f914c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "1d4d8ee002083ca4ead5353662bf8362428af57f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "0caa9f348f8b5356900de77b0bb89a697c4aff20",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "03d8843b143ebbbfaf48511922abc6e886575a61",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "c38c8b0db3c65b597e7ece317b6cb59de3d15e69",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "690afc165bb314354667f67157c1a1aea7dc797a",
        "lessThan": "f00a50876d2818bd6dc86fa98b3ef360884c53c8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d0201d2405dac8d9b16773e97709925e397552d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7943bb0f06365cf5e32f3cf8a6b29eeae981fb8a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4.19.100",
        "lessThan": "4.20",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.4.16",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/ip6_gre.c"
    ],
    "versions": [
      {
        "version": "5.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Aug 2026 05:39Current
CVSS 3.18.8
EPSS0.00169
21