CVE-2026-97964 Affecting kernel-uek64k-modules-usb package, versions <0:6.12.0-207.111.5.1.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEK64KMODULESUSB-20605639
  • published8 Oct 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

CVE-2026-97964  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek64k-modules-usb to version 0:6.12.0-207.111.5.1.el9uek or higher.
This issue was patched in ELSA-2026-500374.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek64k-modules-usb package and not the kernel-uek64k-modules-usb 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:

ppp_synctty: ensure a writeable skb header

ppp_sync_txmunge() checks headroom before prepending the address and control bytes, but does not ensure that the skb header is writable. A received skb can reach this function through PPP channel bridging without passing through ppp_start_xmit(), which calls skb_cow_head().

For example, a PPPoE frame may share its buffer with a clone queued to an AF_PACKET socket. If it is bridged to a synchronous tty channel, the address/control bytes can overwrite data still visible to that socket.

Use skb_cow_head() to ensure both sufficient headroom and a writable header.

CVSS Base Scores

version 3.1