01 Record

CVE-2021-47387

cpufreq: schedutil: Use kobject release() method to free sugov_tunables

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

cpufreq: schedutil: Use kobject release() method to free sugov_tunables

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 16.6% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/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

2024-05-21 15:03Z2 YR AGO

Last updated

2026-05-11 13:53Z3 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-763Release of Invalid Pointer or ReferenceBase

Data version

5.2

Document digest

62550f1cdc38bac576f70d955e954f76029df66bc15c39a2fc9c6340ef77bd24

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < cb4a53ba37532c861a5f3f22803391018a41849a, 9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < 463c46705f321201090b69c4ad5da0cd2ce614c9, 9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < 30d57cf2c4116ca6d34ecd1cac94ad84f8bc446c, 9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < 67c98e023135ff81b8d52998a6fdb8ca0c518d82, 9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < a7d4fc84404d45d72f4490417e8cc3efa4af93f1, 9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < 8d62aec52a8c5b1d25a2364b243fcc5098a2ede9, 9bdcb44e391da5c41b98573bf0305a0e0b1c9569 to < e5c6b312ce3cc97e90ea159446e6bfa06645364d, 4.7—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/cb4a53ba37532c861a5f3f22803391018a41849a
git.kernel.orghttps://git.kernel.org/stable/c/463c46705f321201090b69c4ad5da0cd2ce614c9
git.kernel.orghttps://git.kernel.org/stable/c/30d57cf2c4116ca6d34ecd1cac94ad84f8bc446c
git.kernel.orghttps://git.kernel.org/stable/c/67c98e023135ff81b8d52998a6fdb8ca0c518d82
git.kernel.orghttps://git.kernel.org/stable/c/a7d4fc84404d45d72f4490417e8cc3efa4af93f1
git.kernel.orghttps://git.kernel.org/stable/c/8d62aec52a8c5b1d25a2364b243fcc5098a2ede9
git.kernel.orghttps://git.kernel.org/stable/c/e5c6b312ce3cc97e90ea159446e6bfa06645364d

01 Record index

CVE-2021-47387

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47387

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References