CVE-2026-68140 Affecting kernel-abi-stablelists package, versions <0:6.12.0-211.66.1.el10_2


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELABISTABLELISTS-21135687
  • published16 Oct 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

CVE-2026-68140  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-abi-stablelists 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-abi-stablelists package and not the kernel-abi-stablelists 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:

net/iucv: fix use-after-free of a severed iucv_path

af_iucv queues not-yet-received message notifications on iucv->message_q, each holding a raw pointer to the connection's iucv_path. When the peer severs the connection, iucv_sever_path() frees that path with iucv_path_free() but leaves the notifications queued. A later recvmsg() drains message_q via iucv_process_message_q() and hands the stale path to message_receive() -- a use-after-free of the freed iucv_path.

Drop the queued notifications when the path is severed; once the path is gone they can no longer be received. This also frees the notifications leaked when a socket is closed with messages still queued.

CVSS Base Scores

version 3.1