ghsa-f6mf-84fx-cph2
Vulnerability from github
Published
2025-05-01 15:31
Modified
2025-05-01 15:31
Details

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

io_uring/net: fix io_req_post_cqe abuse by send bundle

[ 114.987980][ T5313] WARNING: CPU: 6 PID: 5313 at io_uring/io_uring.c:872 io_req_post_cqe+0x12e/0x4f0 [ 114.991597][ T5313] RIP: 0010:io_req_post_cqe+0x12e/0x4f0 [ 115.001880][ T5313] Call Trace: [ 115.002222][ T5313] [ 115.007813][ T5313] io_send+0x4fe/0x10f0 [ 115.009317][ T5313] io_issue_sqe+0x1a6/0x1740 [ 115.012094][ T5313] io_wq_submit_work+0x38b/0xed0 [ 115.013223][ T5313] io_worker_handle_work+0x62a/0x1600 [ 115.013876][ T5313] io_wq_worker+0x34f/0xdf0

As the comment states, io_req_post_cqe() should only be used by multishot requests, i.e. REQ_F_APOLL_MULTISHOT, which bundled sends are not. Add a flag signifying whether a request wants to post multiple CQEs. Eventually REQ_F_APOLL_MULTISHOT should imply the new flag, but that's left out for simplicity.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-23154"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T13:15:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/net: fix io_req_post_cqe abuse by send bundle\n\n[  114.987980][ T5313] WARNING: CPU: 6 PID: 5313 at io_uring/io_uring.c:872 io_req_post_cqe+0x12e/0x4f0\n[  114.991597][ T5313] RIP: 0010:io_req_post_cqe+0x12e/0x4f0\n[  115.001880][ T5313] Call Trace:\n[  115.002222][ T5313]  \u003cTASK\u003e\n[  115.007813][ T5313]  io_send+0x4fe/0x10f0\n[  115.009317][ T5313]  io_issue_sqe+0x1a6/0x1740\n[  115.012094][ T5313]  io_wq_submit_work+0x38b/0xed0\n[  115.013223][ T5313]  io_worker_handle_work+0x62a/0x1600\n[  115.013876][ T5313]  io_wq_worker+0x34f/0xdf0\n\nAs the comment states, io_req_post_cqe() should only be used by\nmultishot requests, i.e. REQ_F_APOLL_MULTISHOT, which bundled sends are\nnot. Add a flag signifying whether a request wants to post multiple\nCQEs. Eventually REQ_F_APOLL_MULTISHOT should imply the new flag, but\nthat\u0027s left out for simplicity.",
  "id": "GHSA-f6mf-84fx-cph2",
  "modified": "2025-05-01T15:31:41Z",
  "published": "2025-05-01T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23154"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6889ae1b4df1579bcdffef023e2ea9a982565dff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7888c9fc0b2d3636f2e821ed1ad3c6920fa8e378"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9aa804e6b9696998308095fb9d335046a71550f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7c6d081c19a5e11bbd77bb97a62cff2b6b21cb5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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