Overview
About vulnerability
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().
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 6 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 6 ELS , CloudLinux 7 ELS , Oracle Linux 6 ELS
- Affected packages:
- kernel @ 2.6.32 (+9 more)
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().