SB2024060343 - Improper locking in Linux kernel infiniband core driver
Published: June 3, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024060343
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-2021-47392)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the cma_cancel_route(), cma_cancel_listens() and cma_listen_on_all() functions in drivers/infiniband/core/cma.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/3f4e68902d2e545033c80d7ad62fd9a439e573f4
- https://git.kernel.org/stable/c/e56a5146ef8cb51cd7c9e748267dce7564448a35
- https://git.kernel.org/stable/c/ca465e1f1f9b38fe916a36f7d80c5d25f2337c81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15