fkie_cve-2021-47504
Vulnerability from fkie_nvd
Published
2024-05-24 15:15
Modified
2024-11-21 06:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure task_work gets run as part of cancelations If we successfully cancel a work item but that work item needs to be processed through task_work, then we can be sleeping uninterruptibly in io_uring_cancel_generic() and never process it. Hence we don't make forward progress and we end up with an uninterruptible sleep warning. While in there, correct a comment that should be IFF, not IIF.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/78a780602075d8b00c98070fa26e389b3b3efa72
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8e12976c0c19ebc14b60046b1348c516a74c25a2
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/78a780602075d8b00c98070fa26e389b3b3efa72
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8e12976c0c19ebc14b60046b1348c516a74c25a2
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: ensure task_work gets run as part of cancelations\n\nIf we successfully cancel a work item but that work item needs to be\nprocessed through task_work, then we can be sleeping uninterruptibly\nin io_uring_cancel_generic() and never process it. Hence we don\u0027t\nmake forward progress and we end up with an uninterruptible sleep\nwarning.\n\nWhile in there, correct a comment that should be IFF, not IIF."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: garantiza que task_work se ejecute como parte de las cancelaciones. Si cancelamos con \u00e9xito un elemento de trabajo pero ese elemento de trabajo debe procesarse a trav\u00e9s de task_work, entonces podemos estar durmiendo ininterrumpidamente en io_uring_cancel_generic() y nunca procesarlo. Por lo tanto, no avanzamos y terminamos con un aviso de sue\u00f1o ininterrumpido. Mientras est\u00e9 all\u00ed, corrija un comentario que deber\u00eda ser IFF, no IIF."
    }
  ],
  "id": "CVE-2021-47504",
  "lastModified": "2024-11-21T06:36:21.730",
  "metrics": {},
  "published": "2024-05-24T15:15:10.773",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/78a780602075d8b00c98070fa26e389b3b3efa72"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8e12976c0c19ebc14b60046b1348c516a74c25a2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/78a780602075d8b00c98070fa26e389b3b3efa72"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/8e12976c0c19ebc14b60046b1348c516a74c25a2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.