01 Record

CVE-2021-47058

regmap: set debugfs_name to NULL after it is freed

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

regmap: set debugfs_name to NULL after it is freed

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.0% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-02-29 22:37Z2 YR AGO

Last updated

2026-05-23 15:19Z3 MO AGO

Reserved

2024-02-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

47efce18627f2b4f5033e3a2b3fd289157a9c09ea575c82bfee3459deeba9a15

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux5b654b03007917f3f1015b2a5c288c1ea6ae8f65 to < 2dc1554d5f0fdaf47cc5bea442b84b9226fea867, 480c5e9c7e4c76c01d5f1f7b73832d7b77e6b427 to < d8897f7b2283a500666c85ef06e820df38ed7b52, c9698380b01aed3281160d3ab25749b57d6913b8 to < eb949f891226c012138ffd9df90d1e509f428ae6, cffa4b2122f5f3e53cf3d529bbc74651f95856d5 to < c764e375ae647832de1ee73d43a4bb3ef8a8f43d, cffa4b2122f5f3e53cf3d529bbc74651f95856d5 to < b9e569ae1da3a113b3acee8703c94777fd20938a, cffa4b2122f5f3e53cf3d529bbc74651f95856d5 to < e41a962f82e7afb5b1ee644f48ad0b3aee656268, 4.19.168 to < 4.19.191, 5.4.90 to < 5.4.119, 5.10.8 to < 5.10.37, 5.11—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867
git.kernel.orghttps://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52
git.kernel.orghttps://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6
git.kernel.orghttps://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d
git.kernel.orghttps://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a
git.kernel.orghttps://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268

01 Record index

CVE-2021-47058

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47058

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References