ghsa-pjwx-p5wv-785h
Vulnerability from github
Published
2024-05-17 15:31
Modified
2024-06-27 15:30
Details

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

soc: fsl: qbman: Use raw spinlock for cgr_lock

smp_call_function always runs its callback in hard IRQ context, even on PREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock for cgr_lock to ensure we aren't waiting on a sleeping task.

Although this bug has existed for a while, it was not apparent until commit ef2a8d5478b9 ("net: dpaa: Adjust queue depth on rate change") which invokes smp_call_function_single via qman_update_cgr_safe every time a link goes up or down.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-35819"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-17T14:15:16Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: fsl: qbman: Use raw spinlock for cgr_lock\n\nsmp_call_function always runs its callback in hard IRQ context, even on\nPREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock\nfor cgr_lock to ensure we aren\u0027t waiting on a sleeping task.\n\nAlthough this bug has existed for a while, it was not apparent until\ncommit ef2a8d5478b9 (\"net: dpaa: Adjust queue depth on rate change\")\nwhich invokes smp_call_function_single via qman_update_cgr_safe every\ntime a link goes up or down.",
  "id": "GHSA-pjwx-p5wv-785h",
  "modified": "2024-06-27T15:30:39Z",
  "published": "2024-05-17T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35819"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b3fede8225133671ce837c0d284804aa3bc7a02"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32edca2f03a6cc42c650ddc3ad83d086e3f365d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54d26adf64c04f186098b39dba86b86037084baa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a3ca8292ce9fdcce122706c28c3f07bc857fe5e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd53a8ae5aacb4ecd25088486dea1cd02e74b506"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f39d36b7540cf0088ed7ce2de2794f2aa237f6df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbec4e7fed89b579f2483041fabf9650fb0dd6bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff50716b7d5b7985979a5b21163cd79fb3d21d59"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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