CVE-2022-48754 Information

Description

In the Linux kernel the following vulnerability has been resolved:

phylib: fix potential use-after-free

Commit bafbdd527d56 (\phylib: Add device reset GPIO support) added call to phy_device_reset(phydev) after the put_device() call in phy_detach().

The comment before the put_device() call says that the phydev might go away with put_device().

Fix potential use-after-free by calling phy_device_reset() before put_device().

Reference

https://git.kernel.org/stable/c/67d271760b037ce0806d687ee6057edc8afd4205 https://git.kernel.org/stable/c/f39027cbada43b33566c312e6be3db654ca3ad17 https://git.kernel.org/stable/c/bd024e36f68174b1793906c39ca16cee0c9295c2 https://git.kernel.org/stable/c/aefaccd19379d6c4620269a162bfb88ff687f289 https://git.kernel.org/stable/c/cb2fab10fc5e7a3aa1bb0a68a3abdcf3e37852af https://git.kernel.org/stable/c/cbda1b16687580d5beee38273f6241ae3725960c