SB2025100522 - NULL pointer dereference in Linux kernel infiniband core driver
Published: October 5, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100522
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) NULL pointer dereference (CVE-ID: CVE-2022-50475)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the setup_port() and destroy_port() functions in drivers/infiniband/core/sysfs.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/5e15ff29b156bbbdeadae230c8ecd5ecd8ca2477
- https://git.kernel.org/stable/c/ac7a7d7079124f46180714b2d41a1703d37101bb
- https://git.kernel.org/stable/c/cd06d32a71fbb198b2d43dddf794badd80ffd25d
- https://git.kernel.org/stable/c/f981c697b2f9bd5dd2f060e47ff8b5e0a2cd0c06
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86