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CVE-2026-93784 Affecting kernel-uek64k-modules-wireless package, versions <0:6.12.0-207.111.5.1.el10uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEK64KMODULESWIRELESS-20588761
  • published8 Oct 2026
  • disclosed24 Sept 2026
Report a new vulnerability Found a mistake?

Introduced: 24 Sep 2026

NewCVE-2026-93784  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek64k-modules-wireless to version 0:6.12.0-207.111.5.1.el10uek 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-wireless package and not the kernel-uek64k-modules-wireless 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:

wifi: cfg80211: validate IEs in cfg80211_wext_siwgenie()

The KASAN allocation trace shows that a malformed IE buffer is stored via SIOCSIWGENIE (cfg80211_wext_siwgenie()) without any validation. The crash trace shows that a subsequent SIOCSIWESSID triggers a connection attempt which calls cfg80211_sme_get_conn_ies() to process the stored IE buffer, causing:

  • An out-of-bounds read in skip_ie() which reads ies[pos+1] (the length byte) past the end of the 1-byte buffer.

  • An integer underflow in the memcpy size argument when offs returned by ieee80211_ie_split() exceeds ies_len, causing unsigned subtraction to wrap to SIZE_MAX and triggering a fortify panic.

Fix this by validating the IE buffer in cfg80211_wext_siwgenie() before storing it.

[drop unnecessary ie_len check, update commit message]