Vulnerability-Lookup

GHSA-CGHH-45GX-84F7

Vulnerability from github – Published: 2024-02-28 09:30 – Updated: 2024-12-31 18:30

Details

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

iio: core: fix ioctl handlers removal

Currently ioctl handlers are removed twice. For the first time during iio_device_unregister() then later on inside iio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask(). Double free leads to kernel panic.

Fix this by not touching ioctl handlers list directly but rather letting code responsible for registration call the matching cleanup routine itself.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
    "CVE-2021-46979"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:37Z",
    "severity": "MODERATE"
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix ioctl handlers removal\n\nCurrently ioctl handlers are removed twice. For the first time during\niio_device_unregister() then later on inside\niio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().\nDouble free leads to kernel panic.\n\nFix this by not touching ioctl handlers list directly but rather\nletting code responsible for registration call the matching cleanup\nroutine itself.",
  "id": "GHSA-cghh-45gx-84f7",
  "modified": "2024-12-31T18:30:50Z",
  "published": "2024-02-28T09:30:36Z",
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}

CVE-2021-46979 (GCVE-0-2021-46979)

Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2025-05-04 07:01

Title

iio: core: fix ioctl handlers removal

Summary

In the Linux kernel, the following vulnerability has been resolved: iio: core: fix ioctl handlers removal Currently ioctl handlers are removed twice. For the first time during iio_device_unregister() then later on inside iio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask(). Double free leads to kernel panic. Fix this by not touching ioctl handlers list directly but rather letting code responsible for registration call the matching cleanup routine itself.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/11e1cae5da4096552…
	https://git.kernel.org/stable/c/ab6c935ba3a043176…
	https://git.kernel.org/stable/c/901f84de0e16bde10…

Impacted products

Vendor

Product

Version

Linux

Affected: 8dedcc3eee3aceb37832176f0a1b03d5687acda3 , < 11e1cae5da4096552f7c091476cbadbc0d1817da (git)
Affected: 8dedcc3eee3aceb37832176f0a1b03d5687acda3 , < ab6c935ba3a04317632f3b8b68675bdbaf395303 (git)
Affected: 8dedcc3eee3aceb37832176f0a1b03d5687acda3 , < 901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a (git)

Linux

Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.11.22 , ≤ 5.11.* (semver)
Unaffected: 5.12.5 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-CGHH-45GX-84F7

CVE-2021-46979 (GCVE-0-2021-46979)

Tags

Sightings

Nomenclature