github - ghsa-w9fv-gm94-h938

ghsa-w9fv-gm94-h938

Vulnerability from github

Published

2024-05-21 18:31

Modified

2024-05-21 18:31

Details

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

fbdev: Fix invalid page access after closing deferred I/O devices

When a fbdev with deferred I/O is once opened and closed, the dirty pages still remain queued in the pageref list, and eventually later those may be processed in the delayed work. This may lead to a corruption of pages, hitting an Oops.

This patch makes sure to cancel the delayed work and clean up the pageref list at closing the device for addressing the bug. A part of the cleanup code is factored out as a new helper function that is called from the common fb_release().

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52731"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:13Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: Fix invalid page access after closing deferred I/O devices\n\nWhen a fbdev with deferred I/O is once opened and closed, the dirty\npages still remain queued in the pageref list, and eventually later\nthose may be processed in the delayed work.  This may lead to a\ncorruption of pages, hitting an Oops.\n\nThis patch makes sure to cancel the delayed work and clean up the\npageref list at closing the device for addressing the bug.  A part of\nthe cleanup code is factored out as a new helper function that is\ncalled from the common fb_release().",
  "id": "GHSA-w9fv-gm94-h938",
  "modified": "2024-05-21T18:31:19Z",
  "published": "2024-05-21T18:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52731"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3efc61d95259956db25347e2a9562c3e54546e20"
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      "url": "https://git.kernel.org/stable/c/87b9802ca824fcee7915e717e9a60471af62e8e9"
    },
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      "url": "https://git.kernel.org/stable/c/f1d91f0e9d5a240a809698d7d9c5a538e7dcc149"
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  "schema_version": "1.4.0",
  "severity": []
}

cve-2023-52731

Vulnerability from cvelistv5

Published

2024-05-21 15:22

Modified

2024-11-04 14:51

Severity ?

Summary

fbdev: Fix invalid page access after closing deferred I/O devices

References

▼	URL	Tags
	https://git.kernel.org/stable/c/87b9802ca824fcee7915e717e9a60471af62e8e9
	https://git.kernel.org/stable/c/f1d91f0e9d5a240a809698d7d9c5a538e7dcc149
	https://git.kernel.org/stable/c/3efc61d95259956db25347e2a9562c3e54546e20

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

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