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.
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History
Wed, 30 Apr 2025 15:15:00 +0000
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Weaknesses | CWE-367 |
Fri, 28 Feb 2025 02:00:00 +0000
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cvssV3_1
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Thu, 27 Feb 2025 13:15:00 +0000
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Thu, 27 Feb 2025 02:45:00 +0000
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Description | 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. | |
Title | Input: synaptics - fix crash when enabling pass-through port | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-02-27T02:12:18.477Z
Updated: 2025-03-24T15:39:44.410Z
Reserved: 2024-12-29T08:45:45.758Z
Link: CVE-2025-21746

No data.

Status : Received
Published: 2025-02-27T03:15:15.243
Modified: 2025-02-27T13:15:12.240
Link: CVE-2025-21746
