SB2026032595 - NULL Pointer Dereference in Linux kernel hid usbhid driver
Published: March 25, 2026
Security Bulletin ID
SB2026032595
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-2026-23349)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper null pointer handling in the HID subsystem's pidff driver when processing force feedback effects. A local user can trigger a NULL pointer dereference by manipulating condition effect bits, leading to a system crash.
Exploitation requires access to the force feedback interface, typically available to local users with device permissions.
Remediation
Install update from vendor's website.