CVE-2020-12771

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.6.11

Description An issue in the Linux kernel exists due to insufficient input validation in the btree gc coalesce function, located in drivers/md/bcache/btree.c. This can lead to a deadlock if a coalescing operation fails, potentially allowing an attacker to cause a denial of service.

Recommendations For Linux kernel versions prior to 5.6.11, consider applying configuration changes to minimize the risk of exploitation, such as restricting access to the btree gc coalesce function in drivers/md/bcache/btree.c until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.