CVE-2026-63919 Affecting kernel-zfcpdump-core package, versions <0:5.14.0-687.49.1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.65% (49th percentile)

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  • Snyk IDSNYK-ROCKY9-KERNELZFCPDUMPCORE-19962053
  • published20 Sept 2026
  • disclosed19 Jul 2026

Introduced: 19 Jul 2026

CVE-2026-63919  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 kernel-zfcpdump-core to version 0:5.14.0-687.49.1.el9_8 or higher.
This issue was patched in RLSA-2026:68570.

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:

xfrm: input: hold netns during deferred transport reinjection

Transport-mode reinjection stores a struct net pointer in skb->cb and uses it later from xfrm_trans_reinject(). That pointer must stay valid until the deferred callback runs.

Take a netns reference when queueing deferred reinjection work and drop it after the callback completes. Use maybe_get_net() so the queueing path does not revive a namespace that is already being torn down.

This keeps the existing workqueue design and fixes the netns lifetime handling in one place for all users of xfrm_trans_queue_net().

CVSS Base Scores

version 3.1