{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-50264",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2024-50264"
  ],
  "published": "2024-11-19T01:35:04Z",
  "summary": "vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: Initialization of the dangling pointer occurring in vsk->trans\n\nDuring loopback communication, a dangling pointer can be created in\nvsk->trans, potentially leading to a Use-After-Free condition.  This\nissue is resolved by initializing vsk->trans to NULL.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
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        "name": "linux"
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        "1:6.6.51-1+rpt3"
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-50264"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5f092a4271f6dccf88fe0d132475a17b69ef71df"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fd8ae346692a56b4437d626c5460c7104980f389"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/eb1bdcb7dfc30b24495ee4c5533af0ed135cb5f1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2a6a4e69f255b7aed17f93995691ab4f0d3c2203"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/44d29897eafd0e1196453d3003a4d5e0b968eeab"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b110196fec44fe966952004bd426967c2a8fd358"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5f970935d09934222fdef3d0e20c648ea7a963c1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 7.8,
      "cvss_v3_severity": "High",
      "scenario": "AV:L - vsock is a local socket family (AF_VSOCK) reachable only from the same host; the loopback transport (VSOCKETS_LOOPBACK, default y) operates entirely within the local machine with no network exposure, matching the kernel guidance that vsock = Local.\nAC:L - The attacker fully controls both sides of the race\u2014opening sockets, driving connect()/close() and loopback traffic, and interrupting connect() with signals to trigger transport deassignment while the loopback worker still dereferences the freed vsk->trans; this was demonstrated as a reliable, real-world exploit.\nPR:L - Creating AF_VSOCK sockets and using the loopback transport requires only an unprivileged local account with no capabilities, so basic low privileges suffice.\nUI:N - The attacker's own process performs all operations; no action from any other user is required.\nS:U - The use-after-free corrupts kernel heap memory within the kernel's own security authority, yielding privilege escalation without crossing into another security scope such as a VM/host boundary.\nC:H - The UAF lets the attacker reclaim the freed virtio_vsock_sock object via heap spray and read attacker-influenced kernel memory, providing an arbitrary-read primitive (leveraged for full LPE).\nI:H - Controlling the contents of the reallocated freed object gives a write/control-flow-hijack primitive, enabling arbitrary kernel modification and code execution (demonstrated full LPE).\nA:H - Use-after-free of vsk->trans reliably causes kernel memory corruption, oops, and panic, fully impacting availability."
    }
  }
}