SB20251112115 - NULL pointer dereference in Linux kernel usb host driver
Published: November 12, 2025
Security Bulletin ID
SB20251112115
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-2025-40116)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the max3421_probe() function in drivers/usb/host/max3421-hcd.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/186e8f2bdba551f3ae23396caccd452d985c23e3
- https://git.kernel.org/stable/c/3723c3dda1cc82c9bbca08fcbd46705a361bfd56
- https://git.kernel.org/stable/c/3facf69a735e730ae36387f18780fe420708aa91
- https://git.kernel.org/stable/c/89838fe5c6c010ff8d3924f22afd9c18c5c95310
- https://git.kernel.org/stable/c/b0439e3762ac9ea580f714e1504a1827d1ad32f5
- https://git.kernel.org/stable/c/b682ce44bf20ada752a2f6ce70d5a575c56f6a35
- https://git.kernel.org/stable/c/e0e0ce06f3571be9b26790e4df56ba37b1de8543
- https://git.kernel.org/stable/c/e68ea6de1d0551f90d7a2c75f82cb3ebe5e397dc