| Assigner | Linux |
| Reserved | 2024-02-19 |
| Published | 2024-04-03 |
| Updated | 2024-06-04 |
Description
In the Linux kernel, the following vulnerability has been resolved: usb: roles: fix NULL pointer issue when put module's reference In current design, usb role class driver will get usb_role_switch parent's module reference after the user get usb_role_switch device and put the reference after the user put the usb_role_switch device. However, the parent device of usb_role_switch may be removed before the user put the usb_role_switch. If so, then, NULL pointer issue will be met when the user put the parent module's reference. This will save the module pointer in structure of usb_role_switch. Then, we don't need to find module by iterating long relations.
Product status
5c54fcac9a9d before e279bf8e5189
5c54fcac9a9d before ef982fc41055
5c54fcac9a9d before 0158216805ca
5c54fcac9a9d before 4b45829440b1
5c54fcac9a9d before 01f82de440f2
5c54fcac9a9d before 1c9be13846c0
4.19
Any version before 4.19
5.10.211
5.15.150
6.1.80
6.6.19
6.7.7
6.8
References
https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1
https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913
https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa
https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734
https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db
https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e
