Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-21746

In the Linux kernel, the following vulnerability has been resolved: Input: synaptics - fix crash when enabling pass-through port When enabling a pass-through port an interrupt might come before psmouse driver binds to the pass-through port. However synaptics sub-driver tries to access psmouse instance presumably associated with the pass-through port to figure out if only 1 byte of response or entire protocol packet needs to be forwarded to the pass-through port and may crash if psmouse instance has not been attached to the port yet. Fix the crash by introducing open() and close() methods for the port and check if the port is open before trying to access psmouse instance. Because psmouse calls serio_open() only after attaching psmouse instance to serio port instance this prevents the potential crash.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.0%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2025-21746


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