CVE-2024-42234

A flaw was found in the Linux kernel. The “mm: fix crashes from deferred split racing folio migration” commit involved race conditions during large folio handling. Issues arising from deferred splitting and migration processes where improper locking led to double frees and inconsistencies, such as “Bad page state” errors and failed assertions were fixed. The fix improves locking mechanisms and reference management for folios, ensuring safe operations even when folios are temporarily managed outside of global locks.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.