github - ghsa-pv8w-5hmg-8mf4

ghsa-pv8w-5hmg-8mf4

Vulnerability from github

Published

2024-05-17 15:31

Modified

2024-05-17 15:31

Details

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

debugfs: fix wait/cancellation handling during remove

Ben Greear further reports deadlocks during concurrent debugfs remove while files are being accessed, even though the code in question now uses debugfs cancellations. Turns out that despite all the review on the locking, we missed completely that the logic is wrong: if the refcount hits zero we can finish (and need not wait for the completion), but if it doesn't we have to trigger all the cancellations. As written, we can never get into the loop triggering the cancellations. Fix this, and explain it better while at it.

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JSON

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  "affected": [],
  "aliases": [
    "CVE-2024-35793"
  ],
  "database_specific": {
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    "github_reviewed": false,
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    "nvd_published_at": "2024-05-17T13:15:59Z",
    "severity": null
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndebugfs: fix wait/cancellation handling during remove\n\nBen Greear further reports deadlocks during concurrent debugfs\nremove while files are being accessed, even though the code in\nquestion now uses debugfs cancellations. Turns out that despite\nall the review on the locking, we missed completely that the\nlogic is wrong: if the refcount hits zero we can finish (and\nneed not wait for the completion), but if it doesn\u0027t we have\nto trigger all the cancellations. As written, we can _never_\nget into the loop triggering the cancellations. Fix this, and\nexplain it better while at it.",
  "id": "GHSA-pv8w-5hmg-8mf4",
  "modified": "2024-05-17T15:31:08Z",
  "published": "2024-05-17T15:31:08Z",
  "references": [
    {
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35793"
    },
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  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-35793

Vulnerability from cvelistv5

Published

2024-05-17 12:24

Modified

2024-11-05 09:22

Severity ?

Summary

debugfs: fix wait/cancellation handling during remove

References

▼	URL	Tags
	https://git.kernel.org/stable/c/e88b5ae01901c4a655a53158397746334778a57b
	https://git.kernel.org/stable/c/3d08cca5fd0aabb62b7015067ab40913b33da906
	https://git.kernel.org/stable/c/952c3fce297f12c7ff59380adb66b564e2bc9b64

Impacted products

Vendor

Product

Version

▼

Linux

Version: 8c88a474357e
Version: 8c88a474357e
Version: 8c88a474357e

Linux

Version: 6.7

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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