SB2025103121 - NULL pointer dereference in Linux kernel gadget function driver
Published: October 31, 2025
Security Bulletin ID
SB2025103121
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-2025-40093)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ecm_bind() function in drivers/usb/gadget/function/f_ecm.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/070f341d86cf2c098d63e484a86c7c1d2696a868
- https://git.kernel.org/stable/c/15b9faf53ba8719700596e7ef78879ce200e8c2e
- https://git.kernel.org/stable/c/42988380ac67c76bb9dff8f77d7ef3eefd50b7b5
- https://git.kernel.org/stable/c/4630c68bade82f087eaaab22e9a361da2f18d139
- https://git.kernel.org/stable/c/d3745aaef19198d0c81637a7dd50ef53c4f879b7