CVE-2025-40315 usb: gadget: f_fs: Fix epfile null pointer access after ep enable.

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Fix epfile null pointer access after ep enable. A race condition occurs when ffsfuncepsenable runs concurrently with ffsdatareset. The ffsdataclear called in ffsdatareset sets ffs-epfiles to NULL before resettin...

CVE-2025-40315

CVE-2025-40315: In the Linux kernel usb gadget f_fs, a race allowed NULL pointer dereference when ffs_func_eps_enable() could access epfile->ep after concurrent ffs_data_reset(). The fix adds NULL pointer handling for ffs->epfiles in ffs_func_eps_enable() and aligns NULLing of epfiles under...

PT-2025-49444

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists within the USB gadget f fs functionality. Specifically, a NULL pointer dereference can occur in the ffs func eps enable function when accessing epfile-ep after a...