#VU94457 Improper locking in Linux kernel - CVE-2021-47622

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Main Vulnerability Database Vulnerabilities #VU94457

#VU94457 Improper locking in Linux kernel - CVE-2021-47622

Published: July 17, 2024 / Updated: May 13, 2025


Vulnerability identifier: #VU94457
Vulnerability risk: 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-2021-47622
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the EXPORT_SYMBOL_GPL(), ufshcd_hba_capabilities(), ufshcd_wait_for_dev_cmd(), ufshcd_exec_dev_cmd(), ufshcd_issue_devman_upiu_cmd() and ufshcd_init() functions in drivers/scsi/ufs/ufshcd.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links