CVE-2026-64136 Affecting kernel-zfcpdump-core package, versions <0:5.14.0-687.45.1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.49% (41st percentile)

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  • Snyk IDSNYK-ROCKY9-KERNELZFCPDUMPCORE-19662268
  • published10 Sept 2026
  • disclosed19 Jul 2026

Introduced: 19 Jul 2026

CVE-2026-64136  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 kernel-zfcpdump-core to version 0:5.14.0-687.45.1.el9_8 or higher.
This issue was patched in RLSA-2026:64808.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-core package and not the kernel-zfcpdump-core package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

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

smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()

Commit 96c4af418586 ("cifs: Fix locking usage for tcon fields") refactored cifs code to change cifs_tcp_ses_lock for tc_lock around tc_count changes.

There was missing lock around tc_count increment inside smb2_find_smb_sess_tcon_unlocked().

CVSS Base Scores

version 3.1