ghsa-vjpc-6q33-m3mr
Vulnerability from github
Published
2025-07-10 09:32
Modified
2025-07-10 09:32
Details

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

net: drv: netdevsim: don't napi_complete() from netpoll

netdevsim supports netpoll. Make sure we don't call napi_complete() from it, since it may not be scheduled. Breno reports hitting a warning in napi_complete_done():

WARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560 __napi_poll+0x2d8/0x3a0 handle_softirqs+0x1fe/0x710

This is presumably after netpoll stole the SCHED bit prematurely.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38270"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-10T08:15:25Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: drv: netdevsim: don\u0027t napi_complete() from netpoll\n\nnetdevsim supports netpoll. Make sure we don\u0027t call napi_complete()\nfrom it, since it may not be scheduled. Breno reports hitting a\nwarning in napi_complete_done():\n\nWARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560\n  __napi_poll+0x2d8/0x3a0\n  handle_softirqs+0x1fe/0x710\n\nThis is presumably after netpoll stole the SCHED bit prematurely.",
  "id": "GHSA-vjpc-6q33-m3mr",
  "modified": "2025-07-10T09:32:28Z",
  "published": "2025-07-10T09:32:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38270"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1264971017b4d7141352a7fe29021bdfce5d885d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6837dd877270c57689bd866de9f3de14172c2439"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8ff2e362d901200a1075c3ca9c56d9c7bbef389"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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