Integer Overflow Vulnerability in Linux Kernel Affects USB Functionality
CVE-2025-68750
What is CVE-2025-68750?
A vulnerability in the Linux kernel related to the function usbg_make_tpg() poses a risk of integer overflow, which could be exploited by providing an excessively large value for the tpgt variable. The tpgt variable is defined as unsigned long while being assigned to tpgt->tport_tpgt, which is defined as u16. This mismatch creates a potential for overflow when tpgt exceeds the USHRT_MAX limit of 65535. A patch has been implemented that rectifies the type of tpgt to match tpgt->tport_tpgt, consequently enhancing the security and stability of USB functionalities within the Linux kernel.
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Affected Version(s)
Linux c52661d60f636d17e26ad834457db333bd1df494 < 0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24
Linux c52661d60f636d17e26ad834457db333bd1df494 < 603a83e5fee38a950bfcfb2f36449311fa00a474
Linux c52661d60f636d17e26ad834457db333bd1df494 < 6f77e344515b5258edb3988188311464209b1c7c