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CVE-2026-93229 Affecting kernel-uek-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
0.13% (2nd percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEKMODULESUSB-20606531
  • published8 Oct 2026
  • disclosed24 Sept 2026
Report a new vulnerability Found a mistake?

Introduced: 24 Sep 2026

NewCVE-2026-93229  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-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-uek-modules-usb package and not the kernel-uek-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:

nfsd: add missing read barrier to rpc_status_get dumpit seqcount retry

The hand-rolled seqcount-like protocol in nfsd_nl_rpc_status_get_dumpit() is missing a read memory barrier (smp_rmb) before its second counter check. The standard kernel read_seqcount_retry() includes smp_rmb() to ensure that all data reads complete before the counter is re-checked.

Without this barrier, on weakly-ordered architectures (ARM, POWER), the CPU may reorder field reads past the second counter check, making the retry logic ineffective: it could observe a consistent counter pair while reading fields that have been concurrently modified by the writer.

Add smp_rmb() before the second counter check to order the field reads ahead of it, matching the barrier semantics of the standard seqcount read-side. The begin-side smp_load_acquire() already pairs with the smp_store_release() in nfsd_dispatch(); with the smp_rmb() now ordering the field reads, the retry check no longer needs acquire semantics and reads the counter with a plain READ_ONCE(), as read_seqcount_retry() does.

[ cel: Use READ_ONCE instead of smp_load_acquire() ]