CVE-2025-38278

octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback

State: Published
Severity: 7.8 High
Published: Jul 10, 2025
Updated: Oct 15, 2026
Reserved: Apr 16, 2025

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	5e6808b4c68d7882971514ab3279926eb07c8b2d to before 5df8db01d6a4e9c35a5ba5d7e130d5cecd3ffcb4Affected 5e6808b4c68d7882971514ab3279926eb07c8b2d to before ec62c99914a79d84c8de5ba1b94d62f2ed721f2aAffected 5e6808b4c68d7882971514ab3279926eb07c8b2d to before f1fca0eae5a0573f226f46c6871260278e7dda12Affected 5e6808b4c68d7882971514ab3279926eb07c8b2d to before 67af4ec948e8ce3ea53a9cf614d01fddf172e56dAffected
LinuxLinux	6.5Affected before 6.5Not affected 6.6.94 through 6.6.Not affected 6.12.34 through 6.12.Not affected 6.15.3 through 6.15.*Not affected 6.16 and laterNot affected

References

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