Linux Kernel Read-Only Device Handling Vulnerability in Memstick Mspro Block

A vulnerability in the Linux kernel's memstick/mspro_block driver has been addressed. The issue involved improper management of read-only devices, which could lead to a reference leak. The vulnerability has been fixed by using the set_disk_ro function to correctly communicate the read-only status to the block layer, rather than relying on a manual check in the open function.

Impact

The vulnerability could cause a reference leak when handling read-only devices, potentially leading to resource management issues.