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Incorrect Synchronization The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules-extra  (opens in a new tab)

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EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-RHEL10-KERNELDEBUGMODULESEXTRA-17448391
  • published25 Jun 2026
  • disclosed24 Jun 2026
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Introduced: 24 Jun 2026

CVE-2026-52936  (opens in a new tab)
CWE-821  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-extra package and not the kernel-debug-modules-extra package as distributed by RHEL.

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.