SB2025103123 - NULL pointer dereference in Linux kernel gadget function driver
Published: October 31, 2025
Security Bulletin ID
SB2025103123
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-2025-40094)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the acm_bind() function in drivers/usb/gadget/function/f_acm.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/201a66d8e6630762e760e1d78f1d149da1691e7b
- https://git.kernel.org/stable/c/2b1546f7c5fc6c44555a8e7a2b34229d1dcd2175
- https://git.kernel.org/stable/c/47b2116e54b4a854600341487e8b55249e926324
- https://git.kernel.org/stable/c/c4301e4dd6b32faccb744f1c2320e64235b68d3b
- https://git.kernel.org/stable/c/c5d116862dd3ed162d079738a5ebddf9fceea850
- https://git.kernel.org/stable/c/e348d18fb0124b662cfefb3001733b49da428215