Race Condition Affecting kernel-debug-modules-core package, versions <0:6.12.0-211.60.1.el10_2


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Attacked
EPSS
1.36% (72nd percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELDEBUGMODULESCORE-20648203
  • published8 Oct 2026
  • disclosed13 Oct 2025

Introduced: 13 Oct 2025

CVE-2025-39964  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-debug-modules-core to version 0:6.12.0-211.60.1.el10_2 or higher.
This issue was patched in ELSA-2026-70498.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-core package and not the kernel-debug-modules-core package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

Issuing two writes to the same af_alg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencies in the internal socket state.

Disallow this by adding a new ctx->write field that indiciates exclusive ownership for writing.

CVSS Base Scores

version 3.1