CVE-2026-52936

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

Description The jent kcapi random() function serializes the shared jitterentropy state by holding a spinlock during the jent read entropy() call. Because this process involves expensive jitter collection and SHA3 conditioning, parallel readers can cause system stalls while waiting for the lock. To resolve this, the rng->jent lock spinlock is replaced with a mutex, allowing contending readers to sleep rather than spinning during entropy generation.

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