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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | - | 4.19.8.x |
| debian / debian_linux | 8.0 | 8.0.x |