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        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
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        "full_product_name": {
          "name": "linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64"
        },
        "product_reference": "linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64"
        },
        "product_reference": "hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64"
        },
        "product_reference": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-68338",
      "notes": [
        {
          "category": "description",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/packet: avoid fanout hook re-registration after unregister\n\npacket_set_ring() temporarily detaches a socket from packet delivery while\nreconfiguring its ring. It records the previous running state, clears\npo->num, unregisters the protocol hook when needed, drops po->bind_lock,\nand later restores po->num and re-registers the hook from the saved\nwas_running value.\n\nThat unlocked window can race with NETDEV_UNREGISTER. The notifier can\nobserve the socket as not running, skip __unregister_prot_hook(), and\ninvalidate the per-socket binding by setting po->ifindex to -1 and clearing\npo->prot_hook.dev. A one-member fanout group can still retain its shared\nfanout hook device pointer. When packet_set_ring() resumes, re-registering\nsolely from the stale was_running state can re-add the fanout hook after\nthe device has been unregistered.\n\nTreat po->ifindex == -1 as an invalidated binding after reacquiring\npo->bind_lock. This is distinct from ifindex 0, the normal\nunbound/wildcard state: ifindex -1 marks an existing device binding that\nwas invalidated when the device was unregistered. Restore po->num as\nbefore, but do not re-register the hook if device unregister already\ndetached the socket.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "under_investigation": [
          "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all",
          "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all",
          "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all",
          "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-68338"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/0a052e0808e015e68144a9877e6ef42b952c49fa",
          "url": "https://git.kernel.org/stable/c/0a052e0808e015e68144a9877e6ef42b952c49fa"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/1bc55c29cd85818e9052f17deb287d5a11fb817f",
          "url": "https://git.kernel.org/stable/c/1bc55c29cd85818e9052f17deb287d5a11fb817f"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/4628efbdc7affd094181f5263e65c1062e31f15f",
          "url": "https://git.kernel.org/stable/c/4628efbdc7affd094181f5263e65c1062e31f15f"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/50aff80475abd3533eef4320477037e6fcc6b56e",
          "url": "https://git.kernel.org/stable/c/50aff80475abd3533eef4320477037e6fcc6b56e"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/80ec024d53a05c60ad1d08968dcf745f10c1665c",
          "url": "https://git.kernel.org/stable/c/80ec024d53a05c60ad1d08968dcf745f10c1665c"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/a885387dae7986a55bae5c77a15bdd447f64e9b9",
          "url": "https://git.kernel.org/stable/c/a885387dae7986a55bae5c77a15bdd447f64e9b9"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/acb40ebfa5c4d62f84339fcbf713f2a9fd033a71",
          "url": "https://git.kernel.org/stable/c/acb40ebfa5c4d62f84339fcbf713f2a9fd033a71"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/c820f4b7f2fa38f8769db0d0cefdd94e2721504d",
          "url": "https://git.kernel.org/stable/c/c820f4b7f2fa38f8769db0d0cefdd94e2721504d"
        }
      ],
      "release_date": "2026-08-10T13:20:00Z",
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-08-21T12:21:09.337402Z",
          "details": "Affected",
          "product_ids": [
            "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all",
            "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all",
            "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all",
            "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all"
          ]
        }
      ]
    }
  ]
}