Dave Chinner

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A issue in the Linux kernel has been identified where a read can race with an invalidation followed by another read, potentially replacing a folio with a higher-order folio. This can lead to a NULL pointer dereference while holding the RCU read lock. The problem occurs when a sibling entry for the new folio is encountered in the next iteration of the loop. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.