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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"
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    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-64557",
      "notes": [
        {
          "category": "description",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb()\n\nl2cap_sock_new_connection_cb() returned l2cap_pi(sk)->chan after\nrelease_sock(parent). Once the parent lock is dropped the newly\nenqueued child socket sk is reachable via the accept queue, so another\ntask can accept and free it before the callback dereferences sk,\nresulting in a use-after-free.\n\nRework the ->new_connection() op so the core, rather than the callback,\nowns the child channel's lifetime. The op now receives a pre-allocated\nnew_chan and returns an errno instead of allocating and returning a\nchannel. l2cap_new_connection() allocates the child channel and links\nit into the conn list via __l2cap_chan_add() before invoking the\ncallback, so the conn-list reference keeps the channel alive once\nrelease_sock(parent) exposes the socket to other tasks.\n\nChannel configuration that was duplicated in l2cap_sock_init() and the\nvarious new_connection callbacks is consolidated into\nl2cap_chan_set_defaults(), which now inherits from the parent channel\nwhen one is supplied.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "under_investigation": [
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          "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",
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          "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-2026-64557"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/36da806f7fbaee56ad9e81859deec203f9728700",
          "url": "https://git.kernel.org/stable/c/36da806f7fbaee56ad9e81859deec203f9728700"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/6fef032af0092ed5ccb767239a9ac1bc38c08a40",
          "url": "https://git.kernel.org/stable/c/6fef032af0092ed5ccb767239a9ac1bc38c08a40"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/733e76e74e406c1d1ddc7369420dd8a47f48bb8a",
          "url": "https://git.kernel.org/stable/c/733e76e74e406c1d1ddc7369420dd8a47f48bb8a"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/84e718b6a814edc84159361f9f454a4e92ae91ae",
          "url": "https://git.kernel.org/stable/c/84e718b6a814edc84159361f9f454a4e92ae91ae"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/8c37e4338c801ebb8cee52436c01c41e009f6e87",
          "url": "https://git.kernel.org/stable/c/8c37e4338c801ebb8cee52436c01c41e009f6e87"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/b39298044e5534612511a2ff5de03ba5f6e7a820",
          "url": "https://git.kernel.org/stable/c/b39298044e5534612511a2ff5de03ba5f6e7a820"
        }
      ],
      "release_date": "2026-07-29T09:16:00Z",
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-08-18T12:14:54.789014Z",
          "details": "Affected",
          "product_ids": [
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}