Linux Kernel Rockchip CAN Driver NULL Pointer Dereference Vulnerability

A vulnerability in the Linux kernel's Rockchip CAN driver can lead to a NULL pointer dereference. The issue arises in the 'rkcanfd_handle_rx_fifo_overflow_int()' function, where the code does not properly check if a socket buffer (skb) can be allocated. This oversight can cause the function to attempt to use a NULL pointer, potentially leading to a crash or other unintended behavior.

Impact

Exploitation of this vulnerability causes a NULL pointer dereference, which can lead to a system crash or instability.