Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()
The size of array ‘priv->ports[]’ is INNO_PHY_PORT_NUM.
In the for loop, ‘i’ is used as the index for array ‘priv->ports[]’ with a check (i > INNO_PHY_PORT_NUM) which indicates that INNO_PHY_PORT_NUM is allowed value for ‘i’ in the same loop.
This > comparison needs to be changed to >=, otherwise it potentially leads to an out of bounds write on the next iteration through the loop
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , Oracle Linux 7 ELS , TuxCare 9.6 ESU , Ubuntu 20.04 ELS
- Affected packages:
- kernel @ 4.18.0 (+6 more)
In the Linux kernel, the following vulnerability has been resolved:
phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()
The size of array ‘priv->ports[]’ is INNO_PHY_PORT_NUM.
In the for loop, ‘i’ is used as the index for array ‘priv->ports[]’ with a check (i > INNO_PHY_PORT_NUM) which indicates that INNO_PHY_PORT_NUM is allowed value for ‘i’ in the same loop.
This > comparison needs to be changed to >=, otherwise it potentially leads to an out of bounds write on the next iteration through the loop