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CVE-2021-47504 (GCVE-0-2021-47504)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:01 – Updated: 2026-08-11 02:06
VLAI

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

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    "dateReserved": "2024-05-22T06:20:56.205Z",
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      "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.\"}]",
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      "product_status:known_affected": "150",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: io_uring: ensure task_work gets run as part of cancelations",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47504.json",
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      "cve": "CVE-2021-47504",
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      "product_status:recommended": "313",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47504",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.