CVE-2019-19378

Name of the Vulnerable Software and Affected Versions Linux kernel version 5.0.21

Description The issue is related to the index rbio pages() function in the fs/btrfs/raid56.c module of the btrfs filesystem in the Linux operating system. It involves a slab-out-of-bounds write access when mounting a crafted btrfs filesystem image. This can potentially allow an attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For Linux kernel version 5.0.21, consider disabling the index rbio pages() function as a temporary workaround until a patch is available. Restrict access to the fs/btrfs/raid56.c module to minimize the risk of exploitation. Avoid using crafted btrfs filesystem images until the issue is resolved.