Tracker / CVE-2026-52936
CVE-2026-52936
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: crypto: jitterentropy - replace long-held spinlock with mutex jent_kcapi_random() serializes the shared jitterentropy state, but it currently holds a spinlock across the jent_read_entropy() call. That path performs expensive jitter collection and SHA3 conditioning, so parallel readers can trigger stalls as contending waiters spin for the same lock. To prevent non-preemptible lock hold, replace rng->jent_lock with a mutex so contended readers sleep instead of spinning on a shared lock held across expensive entropy generation.
Affected products and versions
| linux | linux_kernel · 4.2 → 6.6.141 |
|---|---|
| linux | linux_kernel · 6.13 → 6.18.33 |
| linux | linux_kernel · 6.19 → 7.0.10 |
| linux | linux_kernel · 6.7 → 6.12.91 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.