CVE-2026-98563

A vulnerability in the Linux kernel networking stack's phylink component allows for a use-after-free scenario. The issue occurs because phylink_bringup_phy() stores a PHY in pl->phydev before a fallible step (like phy_eee_rx_clock_stop()). If that step fails, the system unwinds using phy_detac...

CVE-2026-98563 net: phylink: record the PHY only once bringup cannot fail

In the Linux kernel, the following vulnerability has been resolved: net: phylink: record the PHY only once bringup cannot fail phylinkbringupphy stores the PHY in pl-phydev before its last fallible step: on a MAC whose phylink ops implement LPI, phyeeerxclockstop can fail with a real MDIO error...

CVE-2025-39905

In the Linux kernel, the following vulnerability has been resolved: net: phylink: add lock for serializing concurrent pl-phydev writes with resolver Currently phylinkresolve protects itself against concurrent phylinkbringupphy or phylinkdisconnectphy calls which modify pl-phydev by relying on...

PT-2025-40079

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the networking subsystem related to phylink. The issue involves a potential race condition when serializing concurrent writes to pl-phydev with the...