CVE-2025-38073

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A race condition exists between the set blocksize and read paths in the Linux kernel, which can cause a kernel crash. This issue arises when the set blocksize function changes i blksize and the folio order in a way that conflicts with a concurrent reader. Specifically, if a reader creates an order-0 folio to read data from a disk and is then preempted, a subsequent call to set blksize can update i blksize and the minimum folio order, leading to inconsistencies when the reader resumes. To resolve this, the page cache is truncated after flushing but before updating i blksize, and both the i rwsem and invalidate lock are taken in exclusive mode for invalidations and in shared mode for read/write operations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.