Memory leak in Linux kernel - CVE-2021-47151
Published: June 10, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91653
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-47151
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the of_bcm_voter_get() function in drivers/interconnect/qcom/bcm-voter.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/4e3cea8035b6f1b9055e69cc6ebf9fa4e50763ae
- https://git.kernel.org/stable/c/93d1dbe7043b3c9492bdf396b2e98a008435b55b
- https://git.kernel.org/stable/c/a00593737f8bac2c9e97b696e7ff84a4446653e8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.42
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13