CVE-2021-3506

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.12.0-rc4

Description An out-of-bounds memory access flaw was found in the f2fs module of the Linux kernel. This flaw is due to a bounds check failure, allowing a local attacker to access out-of-bounds memory. The exploitation of this issue can lead to a system crash or the leak of internal kernel information, with the highest threat being to system availability.

Recommendations For versions prior to 5.12.0-rc4, update to version 5.12.0-rc4 or later to resolve the issue. As a temporary workaround, consider restricting access to the f2fs module to minimize the risk of exploitation.