CVE-2026-74535 Affecting kernel-uek-debug-modules-deprecated package, versions <0:6.12.0-206.104.3.3.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.24% (16th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE10-KERNELUEKDEBUGMODULESDEPRECATED-19614342
  • published5 Sept 2026
  • disclosed15 Aug 2026

Introduced: 15 Aug 2026

NewCVE-2026-74535  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-debug-modules-deprecated to version 0:6.12.0-206.104.3.3.el10uek or higher.
This issue was patched in ELSA-2026-500248.

NVD Description

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

Bluetooth: ISO: avoid deadlocks in iso_sock_timeout

iso_sock_timeout() takes lock_sock, so sync disabling the timer while holding that lock may deadlock.

iso_sock_timeout() may also run concurrently with iso_conn_del(), which leads to UAF

    [Task 1]                      [Task hdev-&gt;workqueue]
    iso_sock_timeout              iso_conn_del
      iso_conn_hold_unless_zero     iso_chan_del
                       `------------&gt; iso_conn_put
                                  caller frees hcon
      iso_conn_put
        iso_conn_free
          conn-&gt;hcon-&gt;iso_data = NULL; /* UAF */

Fix the deadlock by removing the disable from the lock_sock sections. Move the timer from iso_conn to iso_pinfo to decouple it from iso_conn which may need to be freed in lock_sock section. Convert some of the clear_timer to disable_timer.

CVSS Base Scores

version 3.1