ghsa-5pjp-x72x-j9r3
Vulnerability from github
Published
2024-02-26 18:30
Modified
2024-06-27 12:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

sched/membarrier: reduce the ability to hammer on sys_membarrier

On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26602"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-26T16:28:00Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched/membarrier: reduce the ability to hammer on sys_membarrier\n\nOn some systems, sys_membarrier can be very expensive, causing overall\nslowdowns for everything.  So put a lock on the path in order to\nserialize the accesses to prevent the ability for this to be called at\ntoo high of a frequency and saturate the machine.",
  "id": "GHSA-5pjp-x72x-j9r3",
  "modified": "2024-06-27T12:30:43Z",
  "published": "2024-02-26T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26602"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577dee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6"
    },
    {
      "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": [
    {
      "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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