CVE-2025-68750
Published Dec 24, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: usb: potential integer overflow in usbg_make_tpg() The variable tpgt in usbg_make_tpg() is defined as unsigned long and is assigned to tpgt->tport_tpgt, which is defined as u16. This may cause an integer overflow when tpgt is greater than USHRT_MAX (65535). I haven't tried to trigger it myself, but it is possible to trigger it by calling usbg_make_tpg() with a large value for tpgt. I modified the type of tpgt to match tpgt->tport_tpgt and adjusted the relevant code accordingly. This patch is similar to commit 59c816c1f24d ("vhost/scsi: potential memory corruption").
Is your site exposed to CVE-2025-68750?
Run a free security scan — no signup, results in seconds.
References
Other References
https://git.kernel.org/stable/c/0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24
https://git.kernel.org/stable/c/153874010354d050f62f8ae25cbb960c17633dc5
https://git.kernel.org/stable/c/358d5ba08f1609c34a054aed88c431844d09705a
https://git.kernel.org/stable/c/603a83e5fee38a950bfcfb2f36449311fa00a474
https://git.kernel.org/stable/c/620a5e1e84a3a7004270703a118d33eeb1c0f368
https://git.kernel.org/stable/c/6722e080b5b39ab7471386c73d0c1b39572f943c
https://git.kernel.org/stable/c/6f77e344515b5258edb3988188311464209b1c7c
https://git.kernel.org/stable/c/a33f507f36d5881f602dab581ab0f8d22b49762c
Frequently Asked Questions
What is CVE-2025-68750? +
In the Linux kernel, the following vulnerability has been resolved:
usb: potential integer overflow in usbg_make_tpg()
The variable tpgt in usbg_make_tpg() is defined as unsigned long and is
assigned to tpgt->tport_tpgt, which is defined as u16. This may cause an
integer overflow when tpgt is greater than USHRT_MAX (65535). I
haven't tried to trigger it myself, but it is possible to trigger it
by calling usbg_make_tpg() with a large value for tpgt.
I modified the type of tpgt to match tpgt->tport_tpgt and adjusted the
relevant code accordingly.
This patch is similar to commit 59c816c1f24d ("vhost/scsi: potential
memory corruption").
How do I check if I'm vulnerable to CVE-2025-68750? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.