CVE-2026-97939 Affecting kernel-uek-modules-usb package, versions <0:6.12.0-208.112.5.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKMODULESUSB-22166657
  • published3 Nov 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

CVE-2026-97939  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-modules-usb to version 0:6.12.0-208.112.5.el10uek or higher.
This issue was patched in ELSA-2026-500572.

NVD Description

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

ipmr: account multicast table and route memory

A netadmin in a user+net namespace can create many IPv4 and IPv6 multicast routing tables with MRT_TABLE and MRT6_TABLE. Each unseen id allocates an mr_table via the shared mr_table_alloc(), links it into the per-net list, and leaves it until netns teardown. Those objects were not charged to memcg, so the host unreclaimable slab grows with the table count.

Account mr_table allocations with GFP_KERNEL_ACCOUNT and mark the IPv4/IPv6 MFC caches SLAB_ACCOUNT. This matches the established handling of IP addresses, routes and alternate interface names.

Unresolved MFC entries are still allocated from softIRQ with GFP_ATOMIC and are not charged. They expire after 10 seconds and are bounded by the socket receive queue; see commit 0079ad8e8dc3 ("ipmr: remove hard code cache_resolve_queue_len limit").

CVSS Base Scores

version 3.1