GHSA-7GXW-6Q7R-Q63R

Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2024-07-03 18:42
VLAI
Details

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

pipe: wakeup wr_wait after setting max_usage

Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1].

The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write.

Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue.

[Christian Brauner brauner@kernel.org: rewrite to account for watch queues]

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-52672"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-17T14:15:10Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npipe: wakeup wr_wait after setting max_usage\n\nCommit c73be61cede5 (\"pipe: Add general notification queue support\") a\nregression was introduced that would lock up resized pipes under certain\nconditions. See the reproducer in [1].\n\nThe commit resizing the pipe ring size was moved to a different\nfunction, doing that moved the wakeup for pipe-\u003ewr_wait before actually\nraising pipe-\u003emax_usage. If a pipe was full before the resize occured it\nwould result in the wakeup never actually triggering pipe_write.\n\nSet @max_usage and @nr_accounted before waking writers if this isn\u0027t a\nwatch queue.\n\n[Christian Brauner \u003cbrauner@kernel.org\u003e: rewrite to account for watch queues]",
  "id": "GHSA-7gxw-6q7r-q63r",
  "modified": "2024-07-03T18:42:22Z",
  "published": "2024-05-17T15:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52672"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.