CVE-2024-47757

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.58

Description The issue is related to the function nilfs btree check delete() in the nilfs2 module of the Linux kernel, which can cause memory access outside the block buffer when retrieving the maximum key if the root node has no entries. This can happen if the b-tree root node read from a device is configured that way. The problem is fixed by adding a check for that case.

Recommendations For Linux kernel versions prior to 6.6.58, update to version 6.6.58 or later to resolve the issue. As a temporary workaround, consider restricting access to the nilfs2 module until a patch is available.