CVE-2024-26942 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net: phy: qcom: at803x: fix kernel panic with at8031_probe

On reworking and splitting the at803x driver in splitting function of at803x PHYs it was added a NULL dereference bug where priv is referenced before it’s actually allocated and then is tried to write to for the is_1000basex and is_fiber variables in the case of at8031 writing on the wrong address.

Fix this by correctly setting priv local variable only after at803x_probe is called and actually allocates priv in the phydev struct.

Reference

https://git.kernel.org/stable/c/a8a296ad9957b845b89bcf48be1cf8c74875ecc3 https://git.kernel.org/stable/c/6a4aee277740d04ac0fd54cfa17cc28261932ddc