octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback

Summary

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback This patch addresses below issues, 1. Active traffic on the leaf node must be stopped before its send queue is reassigned to the parent. This patch resolves the issue by marking the node as 'Inner'. 2. During a system reboot, the interface receives TC_HTB_LEAF_DEL and TC_HTB_LEAF_DEL_LAST callbacks to delete its HTB queues. In the case of TC_HTB_LEAF_DEL_LAST, although the same send queue is reassigned to the parent, the current logic still attempts to update the real number of queues, leadning to below warnings New queues can't be registered after device unregistration. WARNING: CPU: 0 PID: 6475 at net/core/net-sysfs.c:1714 netdev_queue_update_kobjects+0x1e4/0x200

Timeline

1. Jul 10, 2025, 7:41 AM UTCCVE published
2. Oct 15, 2026, 9:49 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Oct 15, 2026, 9:52 PM UTCRecord last updated

Affected versions

• Linux Linux

  From 5e6808b4c68d7882971514ab3279926eb07c8b2d · fixed in 5df8db01d6a4e9c35a5ba5d7e130d5cecd3ffcb4; From 5e6808b4c68d7882971514ab3279926eb07c8b2d · fixed in ec62c99914a79d84c8de5ba1b94d62f2ed721f2a; From 5e6808b4c68d7882971514ab3279926eb07c8b2d · fixed in f1fca0eae5a0573f226f46c6871260278e7dda12; From 5e6808b4c68d7882971514ab3279926eb07c8b2d · fixed in 67af4ec948e8ce3ea53a9cf614d01fddf172e56d

• Linux Linux

  6.5

• KernelLinux

  From 6.5.0 · fixed in 6.6.94; From 6.7.0 · fixed in 6.12.34; From 6.13.0 · fixed in 6.15.3

References 4