Out-of-bounds Read Affecting kernel-uek-debug-modules-usb package, versions <0:6.12.0-200.74.27.el9uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.01% (4th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEKDEBUGMODULESUSB-15864808
  • published1 Apr 2026
  • disclosed14 Feb 2026

Introduced: 14 Feb 2026

CVE-2026-23204  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-debug-modules-usb to version 0:6.12.0-200.74.27.el9uek or higher.
This issue was patched in ELSA-2026-50160.

NVD Description

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

net/sched: cls_u32: use skb_header_pointer_careful()

skb_header_pointer() does not fully validate negative @offset values.

Use skb_header_pointer_careful() instead.

GangMin Kim provided a report and a repro fooling u32_classify():

BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180/0x11b0 net/sched/cls_u32.c:221

CVSS Base Scores

version 3.1