Vulnerability-Lookup

GHSA-69W7-5X2M-P8CP

Vulnerability from github – Published: 2024-03-01 00:30 – Updated: 2024-12-10 18:31

Details

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

regmap: set debugfs_name to NULL after it is freed

There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47058"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T23:15:07Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: set debugfs_name to NULL after it is freed\n\nThere is a upstream commit cffa4b2122f5(\"regmap:debugfs:\nFix a memory leak when calling regmap_attach_dev\") that\nadds a if condition when create name for debugfs_name.\nWith below function invoking logical, debugfs_name is\nfreed in regmap_debugfs_exit(), but it is not created again\nbecause of the if condition introduced by above commit.\nregmap_reinit_cache()\n\tregmap_debugfs_exit()\n\t...\n\tregmap_debugfs_init()\nSo, set debugfs_name to NULL after it is freed.",
  "id": "GHSA-69w7-5x2m-p8cp",
  "modified": "2024-12-10T18:31:06Z",
  "published": "2024-03-01T00:30:28Z",
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CVE-2021-47058 (GCVE-0-2021-47058)

Vulnerability from cvelistv5 – Published: 2024-02-29 22:37 – Updated: 2026-05-23 15:19

Title

regmap: set debugfs_name to NULL after it is freed

Summary

In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-01 15:52 UTC

Assigner

Linux mitre root Scorecard

References

6 references

URL	Tags
https://git.kernel.org/stable/c/2dc1554d5f0fdaf47…
https://git.kernel.org/stable/c/d8897f7b2283a5006…
https://git.kernel.org/stable/c/eb949f891226c0121…
https://git.kernel.org/stable/c/c764e375ae647832d…
https://git.kernel.org/stable/c/b9e569ae1da3a113b…
https://git.kernel.org/stable/c/e41a962f82e7afb5b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5b654b03007917f3f1015b2a5c288c1ea6ae8f65 , < 2dc1554d5f0fdaf47cc5bea442b84b9226fea867 (git) Affected: 480c5e9c7e4c76c01d5f1f7b73832d7b77e6b427 , < d8897f7b2283a500666c85ef06e820df38ed7b52 (git) Affected: c9698380b01aed3281160d3ab25749b57d6913b8 , < eb949f891226c012138ffd9df90d1e509f428ae6 (git) Affected: cffa4b2122f5f3e53cf3d529bbc74651f95856d5 , < c764e375ae647832de1ee73d43a4bb3ef8a8f43d (git) Affected: cffa4b2122f5f3e53cf3d529bbc74651f95856d5 , < b9e569ae1da3a113b3acee8703c94777fd20938a (git) Affected: cffa4b2122f5f3e53cf3d529bbc74651f95856d5 , < e41a962f82e7afb5b1ee644f48ad0b3aee656268 (git) Affected: 4.19.168 , < 4.19.191 (semver) Affected: 5.4.90 , < 5.4.119 (semver) Affected: 5.10.8 , < 5.10.37 (semver)
Linux	Linux	Affected: 5.11 Unaffected: 0 , < 5.11 (semver) Unaffected: 4.19.191 , ≤ 4.19.* (semver) Unaffected: 5.4.119 , ≤ 5.4.* (semver) Unaffected: 5.10.37 , ≤ 5.10.* (semver) Unaffected: 5.11.21 , ≤ 5.11.* (semver) Unaffected: 5.12.4 , ≤ 5.12.* (semver) Unaffected: 5.13 , ≤ * (original_commit_for_fix)

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-69W7-5X2M-P8CP

CVE-2021-47058 (GCVE-0-2021-47058)

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