CVE-2022-49385 Information

Description

In the Linux kernel the following vulnerability has been resolved:

driver: base: fix UAF when driver_attach failed

When driver_attach(drv); failed the driver_private will be freed. But it has been added to the bus which caused a UAF.

To fix it we need to delete it from the bus when failed.

Reference

https://git.kernel.org/stable/c/310862e574001a97ad02272bac0fd13f75f42a27 https://git.kernel.org/stable/c/5389101257828d1913d713d9a40acbe14f5961df https://git.kernel.org/stable/c/5d709f58c743166fe1c6914b9de0ae8868600d9b https://git.kernel.org/stable/c/823f24f2e329babd0330200d0b74882516fe57f4 https://git.kernel.org/stable/c/c059665c84feab46b7173d3a1bf36c2fb7f9df86 https://git.kernel.org/stable/c/cdf1a683a01583bca4b618dd16223cbd6e462e21