CVE-2026-64379 Affecting kernel-debug-modules-core package, versions <0:5.14.0-687.41.1.el9_8


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELDEBUGMODULESCORE-19200952
  • published22 Aug 2026
  • disclosed25 Jul 2026

Introduced: 25 Jul 2026

NewCVE-2026-64379  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-debug-modules-core to version 0:5.14.0-687.41.1.el9_8 or higher.
This issue was patched in ELSA-2026-57252.

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:9 relevant fixed versions and status.

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

smb: client: mask server-provided mode to 07777 in modefromsid

When modefromsid is active, parse_dacl() applies the server-provided sub_auth[2] value from the NFS mode SID to cf_mode without masking to 07777. Apply the correct masking, same as in the read path.

CVSS Base Scores

version 3.1