CVE-2020-12657

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.6.5

Description The issue is related to a use-after-free in the block/bfq-iosched.c file, specifically with the bfq idle slice timer body function. This could allow an attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For Linux kernel versions prior to 5.6.5, update to version 5.6.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the bfq idle slice timer body function until a patch is available.