CVE-2026-74574 Affecting kernel-debug-modules-core package, versions <0:6.12.0-211.66.1.el10_2


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELDEBUGMODULESCORE-21135823
  • published16 Oct 2026
  • disclosed15 Aug 2026

Introduced: 15 Aug 2026

CVE-2026-74574  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-debug-modules-core to version 0:6.12.0-211.66.1.el10_2 or higher.
This issue was patched in ELSA-2026-83207.

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:

dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open()

The failed_dev_add and failed_dev_name paths drop the file-device reference while wq->wq_lock is still held. If put_device(fdev) drops the last reference, idxd_file_dev_release() runs synchronously and tries to take wq->wq_lock again, deadlocking.

Those paths also fall through into the later ctx cleanup labels even though idxd_file_dev_release() owns that cleanup and frees ctx. This can make idxd_xa_pasid_remove(ctx) and kfree(ctx) operate on a freed context.

Move idxd_wq_get() before file-device setup can fail, since the release callback always calls idxd_wq_put(). Then unlock wq->wq_lock before put_device(fdev) and return directly from the file-device setup failure path, leaving ctx cleanup to the release callback.

CVSS Base Scores

version 3.1