CVE-2021-47093 : In the Linux kernel, the following vulnerability has been resolved: platform/x8

In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel_pmc_core: fix memleak on registration failure In case device registration fails during module initialisation, the platform device structure needs to be freed using platform_device_put() to properly free all resources (e.g. the device name).

Published 2024-03-04 18:15:08

Updated 2025-01-14 15:39:17

Source Linux

View at NVD, CVE.org

Products affected by CVE-2021-47093

Linux » Linux Kernel
Versions from including (>=) 5.11 and before (<) 5.15.12
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.9 and before (<) 5.10.89
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.16 Update RC1
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.16 Update RC2
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.16 Update RC3
cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.16 Update RC4
cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.16 Update RC5
cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.16 Update RC6
cpe:2.3:o:linux:linux_kernel:5.16:rc6:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-47093

EPSS FAQ

0.01%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 1 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-47093

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST	2025-01-14
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-47093

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-47093

https://git.kernel.org/stable/c/7a37f2e370699e2feca3dca6c8178c71ceee7e8a

platform/x86: intel_pmc_core: fix memleak on registration failure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/9ca1324755f1f8629a370af5cc315b175331f5d1

platform/x86: intel_pmc_core: fix memleak on registration failure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/26a8b09437804fabfb1db080d676b96c0de68e7c

platform/x86: intel_pmc_core: fix memleak on registration failure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch

Jump to

Vulnerability Details : CVE-2021-47093

Products affected by CVE-2021-47093

Exploit prediction scoring system (EPSS) score for CVE-2021-47093

CVSS scores for CVE-2021-47093

CWE ids for CVE-2021-47093

References for CVE-2021-47093