Vulnerability CVE-2022-48873
Published: 2024-08-21

Description:
In the Linux kernel, the following vulnerability has been resolved:

misc: fastrpc: Don't remove map on creater_process and device_release

Do not remove the map from the list on error path in
fastrpc_init_create_process, instead call fastrpc_map_put, to avoid
use-after-free. Do not remove it on fastrpc_device_release either,
call fastrpc_map_put instead.

The fastrpc_free_map is the only proper place to remove the map.
This is called only after the reference count is 0.

 References:
https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7
https://git.kernel.org/stable/c/193cd853145b63e670bd73740250983af1475330
https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8
https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b
https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15
Copyright 2026, cxsecurity.com

 

Back to Top