GHSA-VC22-MX78-4MGJ

Vulnerability from github – Published: 2025-08-16 12:30 – Updated: 2026-01-22 18:50
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix oops due to non-existence of prealloc backlog struct

If an AF_RXRPC service socket is opened and bound, but calls are preallocated, then rxrpc_alloc_incoming_call() will oops because the rxrpc_backlog struct doesn't get allocated until the first preallocation is made.

Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no backlog struct. This will cause the incoming call to be aborted.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2025-38514"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-16T11:15:44Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix oops due to non-existence of prealloc backlog struct\n\nIf an AF_RXRPC service socket is opened and bound, but calls are\npreallocated, then rxrpc_alloc_incoming_call() will oops because the\nrxrpc_backlog struct doesn\u0027t get allocated until the first preallocation is\nmade.\n\nFix this by returning NULL from rxrpc_alloc_incoming_call() if there is no\nbacklog struct.  This will cause the incoming call to be aborted.",
  "id": "GHSA-vc22-mx78-4mgj",
  "modified": "2026-01-22T18:50:52Z",
  "published": "2025-08-16T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38514"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0eef29385d715d4c7fd707b18d4a9b76c76dd5e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf0ca6a1bc4fb904b598137c6718785a107e3adf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1ff5f9d2c5405681457262e23c720b08977c11f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/efc1b2b7c1a308b60df8f36bc2d7ce16d3999364"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5e72b7824d08c206ce106d30cb37c4642900ccc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7afb3ff01c42c49e8a143cdce400b95844bb506"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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