CVE-2021-47058 (GCVE-0-2021-47058)
Vulnerability from cvelistv5
Published
2024-02-29 22:37
Modified
2026-05-23 15:19
Severity ?
VLAI Severity ?
EPSS score ?
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5b654b03007917f3f1015b2a5c288c1ea6ae8f65 Version: 480c5e9c7e4c76c01d5f1f7b73832d7b77e6b427 Version: c9698380b01aed3281160d3ab25749b57d6913b8 Version: cffa4b2122f5f3e53cf3d529bbc74651f95856d5 Version: cffa4b2122f5f3e53cf3d529bbc74651f95856d5 Version: cffa4b2122f5f3e53cf3d529bbc74651f95856d5 Version: 4.19.168 ≤ Version: 5.4.90 ≤ Version: 5.10.8 ≤ |
||
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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