The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and uses it to index a small array, resulting in an object out-of-bounds (OOB) read that potentially allows arbitrary read in the kernel address space.
Exploitability
AV:PAC:LPR:NUI:NScope
S:UImpact
C:HI:NA:N4.6/CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N