SB2024071776 - Improper locking in Linux kernel scsi ufs driver
Published: July 17, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071776
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2021-47622)
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.
References
- https://git.kernel.org/stable/c/493c9e850677df8b4eda150c2364b1c1a72ed724
- https://git.kernel.org/stable/c/d69d98d8edf90e25e4e09930dd36dd6d09dd6768
- https://git.kernel.org/stable/c/945c3cca05d78351bba29fa65d93834cb7934c7b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.25
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17