github - ghsa-335x-9j96-mxcr

ghsa-335x-9j96-mxcr

Vulnerability from github

Published

2024-05-21 15:31

Modified

2024-05-21 15:31

Details

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

dma-debug: prevent an error message from causing runtime problems

For some drivers, that use the DMA API. This error message can be reached several millions of times per second, causing spam to the kernel's printk buffer and bringing the CPU usage up to 100% (so, it should be rate limited). However, since there is at least one driver that is in the mainline and suffers from the error condition, it is more useful to err_printk() here instead of just rate limiting the error message (in hopes that it will make it easier for other drivers that suffer from this issue to be spotted).

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47374"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-debug: prevent an error message from causing runtime problems\n\nFor some drivers, that use the DMA API. This error message can be reached\nseveral millions of times per second, causing spam to the kernel\u0027s printk\nbuffer and bringing the CPU usage up to 100% (so, it should be rate\nlimited). However, since there is at least one driver that is in the\nmainline and suffers from the error condition, it is more useful to\nerr_printk() here instead of just rate limiting the error message (in hopes\nthat it will make it easier for other drivers that suffer from this issue\nto be spotted).",
  "id": "GHSA-335x-9j96-mxcr",
  "modified": "2024-05-21T15:31:44Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47374"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/510e1a724ab1bf38150be2c1acabb303f98d0047"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de4afec2d2946c92c62a15ab341c70b287289e6a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-47374

Vulnerability from cvelistv5

Published

2024-05-21 15:03

Modified

2024-11-04 12:04

Severity ?

Summary

dma-debug: prevent an error message from causing runtime problems

References

▼	URL	Tags
	https://git.kernel.org/stable/c/de4afec2d2946c92c62a15ab341c70b287289e6a
	https://git.kernel.org/stable/c/510e1a724ab1bf38150be2c1acabb303f98d0047

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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