CVE-2023-53068 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net: usb: lan78xx: Limit packet length to skb->len

Packet length retrieved from descriptor may be larger than the actual socket buffer length. In such case the cloned skb passed up the network stack will leak kernel memory contents.

Additionally prevent integer underflow when size is less than ETH_FCS_LEN.

Reference

https://git.kernel.org/stable/c/44b9ed73369fc5ec85dd2ee487e986301792a82d https://git.kernel.org/stable/c/7f247f5a2c18b3f21206cdd51193df4f38e1b9f5 https://git.kernel.org/stable/c/83de34967473ed31d276381373713cc2869a42e5