In lwis_fence_signal of lwis_debug.c, there is a possible Use after Free due to improper locking. This could lead to local escalation of privilege from hal_camera_default SELinux label with no additional execution privileges needed. User interaction is not needed for exploitation.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
| Link | Tags |
|---|---|
| https://source.android.com/security/bulletin/pixel/2024-06-01 | vendor advisory |