CVE-2021-47058 (GCVE-0-2021-47058)
Vulnerability from cvelistv5 – Published: 2024-02-29 22:37 – Updated: 2025-05-04 07:03
VLAI?
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.
Assigner
References
Impacted 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) |
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|
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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.
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