{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-56602",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2024-56602"
  ],
  "published": "2024-12-27T14:59:59Z",
  "summary": "net: ieee802154: do not leave a dangling sk pointer in ieee802154_create()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ieee802154: do not leave a dangling sk pointer in ieee802154_create()\n\nsock_init_data() attaches the allocated sk object to the provided sock\nobject. If ieee802154_create() fails later, the allocated sk object is\nfreed, but the dangling pointer remains in the provided sock object, which\nmay allow use-after-free.\n\nClear the sk pointer in the sock object on error.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-56602"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1d5fe782c0ff068d80933f9cfd0fd39d5434bbc9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/14959fd7538b3be6d7617d9e60e404d6a8d4fd1f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2b46994a6e76c8cc5556772932b9b60d03a55cd8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e8bd6c5f5dc2234b4ea714380aedeea12a781754"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b4982fbf13042e3bb33e04eddfea8b1506b5ea65"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/03caa9bfb9fde97fb53d33decd7364514e6825cb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b4fcd63f6ef79c73cafae8cf4a114def5fc3d80d"
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  "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": 7.0,
      "cvss_v3_severity": "High",
      "scenario": "AV:L - The vulnerable code is the `socket(AF_IEEE802154, ...)` creation path, reached only through a local syscall via `__sock_create()`; no network- or radio-received data reaches it. Despite the subsystem being a wireless PAN stack, the defect itself is in socket setup, not in frame processing.\nAC:H - The dangling pointer is only produced when `sk->sk_prot->hash()` or `->init()` returns non-zero, but `raw_hash()`, `dgram_hash()` and `dgram_init()` all unconditionally `return 0` in every affected version (2.6.31\u20136.12) and the raw proto has no `.init`, so the error branch is unreachable and the attacker cannot influence it.\nPR:L - Creating a `SOCK_DGRAM` AF_IEEE802154 socket needs no capability at all, so any unprivileged local user reaches `ieee802154_create()`; note the `!net_eq(net, &init_net)` guard means the call must be made in the initial netns, so user namespaces do not lower this further but also are not needed.\nUI:N - The attacker performs the whole sequence with a single `socket()` syscall from its own process. No victim action or interaction is involved.\nS:U - The freed `struct sock`/`struct dgram_sock` and the stale `sock->sk` reference both live entirely within the kernel's own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - Per the use-after-free rubric, a stale `sock->sk` reference to a freed `dgram_sock` in the kmalloc-general caches would let an attacker reclaim the slab and read back attacker-shaped or leftover kernel data through subsequent socket operations.\nI:H - The same dangling reference would allow heap spraying of the reclaimed slot, giving control over function-pointer-bearing fields (`sk_prot`, `sk_destruct`, `sk_wq`) and thus a control-flow-hijack primitive rather than a mere data corruption.\nA:H - Any dereference of the freed `sock->sk` would fault or corrupt the socket hash lists, producing an oops or panic; the rubric treats all use-after-free conditions as high availability impact even when only partially exploited."
    }
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}