GHSA-X592-QQVV-RPR2

Vulnerability from github – Published: 2024-06-19 15:30 – Updated: 2025-03-06 15:34
VLAI
Details

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

net/mlx5: Add a timeout to acquire the command queue semaphore

Prevent forced completion handling on an entry that has not yet been assigned an index, causing an out of bounds access on idx = -22. Instead of waiting indefinitely for the sem, blocking flow now waits for index to be allocated or a sem acquisition timeout before beginning the timer for FW completion.

Kernel log example: mlx5_core 0000:06:00.0: wait_func_handle_exec_timeout:1128:(pid 185911): cmd[-22]: CREATE_UCTX(0xa04) No done completion

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-38556"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:15Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Add a timeout to acquire the command queue semaphore\n\nPrevent forced completion handling on an entry that has not yet been\nassigned an index, causing an out of bounds access on idx = -22.\nInstead of waiting indefinitely for the sem, blocking flow now waits for\nindex to be allocated or a sem acquisition timeout before beginning the\ntimer for FW completion.\n\nKernel log example:\nmlx5_core 0000:06:00.0: wait_func_handle_exec_timeout:1128:(pid 185911): cmd[-22]: CREATE_UCTX(0xa04) No done completion",
  "id": "GHSA-x592-qqvv-rpr2",
  "modified": "2025-03-06T15:34:36Z",
  "published": "2024-06-19T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38556"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d0962d05c93de391ce85f6e764df895f47c8918"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/485d65e1357123a697c591a5aeb773994b247ad7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4baae687a20ef2b82fde12de3c04461e6f2521d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94024332a129c6e4275569d85c0c1bfb2ae2d71b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9caccdd42e999b74303c9b0643300073ed5d319"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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