CVE-2026-72109

High

Description

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: unregister blocking notifier on init failure sparx5_register_notifier_blocks() registers the switchdev blocking notifier before allocating the ordered workqueue. If the workqueue allocation fails, the error path unregisters the switchdev and netdevice notifiers, but leaves the blocking notifier registered. Add a separate error label for the workqueue allocation failure path and unregister the switchdev blocking notifier there.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux
PublishedAug 15, 2026
First seenAug 15, 2026

How to fix

Update
  • Linux Linuxfbc65b17508ed5464b7106e7fa5f15251ca1b603, e5afc6d3fabdf1f605d63c4b34a3df6c359e81f3, cf419c869e0d03aad4b6f4ecf0a813851930dfe7, d6084c47389fd6978a5d66b0d58206a548c792a9, 8a3c44a003176282ee4306b7c96e5a536c6f0707, 17f113e7b622dc850992ade540181717de6a8561, 483be61b4a9a6df3b7cb277e8f189e082dee4cb8 or later

Affected products

ProductAffected versionsFixed in
Linux Linuxd6fce5141929697a27f029c633433d487f6f62cb ≤ v < fbc65b17508ed5464b7106e7fa5f15251ca1b603, d6fce5141929697a27f029c633433d487f6f62cb ≤ v < e5afc6d3fabdf1f605d63c4b34a3df6c359e81f3, d6fce5141929697a27f029c633433d487f6f62cb ≤ v < cf419c869e0d03aad4b6f4ecf0a813851930dfe7, d6fce5141929697a27f029c633433d487f6f62cb ≤ v < d6084c47389fd6978a5d66b0d58206a548c792a9, d6fce5141929697a27f029c633433d487f6f62cb ≤ v < 8a3c44a003176282ee4306b7c96e5a536c6f0707, d6fce5141929697a27f029c633433d487f6f62cb ≤ v < 17f113e7b622dc850992ade540181717de6a8561, d6fce5141929697a27f029c633433d487f6f62cb ≤ v < 483be61b4a9a6df3b7cb277e8f189e082dee4cb8, 5.14fbc65b17508ed5464b7106e7fa5f15251ca1b603, e5afc6d3fabdf1f605d63c4b34a3df6c359e81f3, cf419c869e0d03aad4b6f4ecf0a813851930dfe7, d6084c47389fd6978a5d66b0d58206a548c792a9, 8a3c44a003176282ee4306b7c96e5a536c6f0707, 17f113e7b622dc850992ade540181717de6a8561, 483be61b4a9a6df3b7cb277e8f189e082dee4cb8

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