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.
4.4.0-1039.424.4.0-143.169~14.04.24.4.0-143.1694.4.0-1077.874.15.0-1047.49~16.04.14.15.0-1056.614.15.0-1041.434.15.0-60.67~16.04.14.4.0-1041.474.15.0-1022.25~16.04.1Exploitability
AV:PAC:LPR:NUI:NScope
S:UImpact
C:HI:NA:NCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N