CVE-2021-47313
Linux cpufreq: Memleak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init It's a classic example of memleak, we allocate something, we fail and never free the resources. Make sure we free all resources on policy ->init() failures.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
April 2, 2025, 2:40 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.5
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47313.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47313 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47313 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 02, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.4 Added Reference Type CVE: https://git.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3 Added Reference https://git.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2 Added Reference https://git.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 03, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-400 Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init It's a classic example of memleak, we allocate something, we fail and never free the resources. Make sure we free all resources on policy ->init() failures. Added Reference kernel.org https://git.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47313 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47313
weaknesses.