In the Linux kernel, the following vulnerability has been resolved: net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast syzbot reported WARNING in rtl8150_start_xmit/usb_submit_urb. This is the sequence of events that leads to the warning: rtl8150_start_xmit() { netif_stop_queue(); usb_submit_urb(dev->tx_urb); } rtl8150_set_multicast() { netif_stop_queue(); netif_wake_queue(); <-- wakes up TX queue before URB is done } rtl8150_start_xmit() { netif_stop_queue(); usb_submit_urb(dev->tx_urb); <-- double submission } rtl8150_set_multicast being the ndo_set_rx_mode callback should not be calling netif_stop_queue and notif_start_queue as these handle TX queue synchronization. The net core function dev_set_rx_mode handles the synchronization for rtl8150_set_multicast making it safe to remove these locks.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/114e05344763a102a8844efd96ec06ba99293ccd cve-icon cve-icon
https://git.kernel.org/stable/c/1a08a37ac03d07a1608a1592791041cac979fbc3 cve-icon cve-icon
https://git.kernel.org/stable/c/54f8ef1a970a8376e5846ed90854decf7c00555d cve-icon cve-icon
https://git.kernel.org/stable/c/6053e47bbf212b93c051beb4261d7d5a409d0ce3 cve-icon cve-icon
https://git.kernel.org/stable/c/6394bade9daab8e318c165fe43bba012bf13cd8e cve-icon cve-icon
https://git.kernel.org/stable/c/958baf5eaee394e5fd976979b0791a875f14a179 cve-icon cve-icon
https://git.kernel.org/stable/c/9d72df7f5eac946f853bf49c428c4e87a17d91da cve-icon cve-icon
https://git.kernel.org/stable/c/cce3c0e21cdd15bcba5c35d3af1700186de8f187 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025111255-CVE-2025-40140-ae1a@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40140 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40140 cve-icon
History

Fri, 14 Nov 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Wed, 12 Nov 2025 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Wed, 12 Nov 2025 10:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast syzbot reported WARNING in rtl8150_start_xmit/usb_submit_urb. This is the sequence of events that leads to the warning: rtl8150_start_xmit() { netif_stop_queue(); usb_submit_urb(dev->tx_urb); } rtl8150_set_multicast() { netif_stop_queue(); netif_wake_queue(); <-- wakes up TX queue before URB is done } rtl8150_start_xmit() { netif_stop_queue(); usb_submit_urb(dev->tx_urb); <-- double submission } rtl8150_set_multicast being the ndo_set_rx_mode callback should not be calling netif_stop_queue and notif_start_queue as these handle TX queue synchronization. The net core function dev_set_rx_mode handles the synchronization for rtl8150_set_multicast making it safe to remove these locks.
Title net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-11-12T10:23:24.586Z

Updated: 2025-11-12T10:23:24.586Z

Reserved: 2025-04-16T07:20:57.171Z

Link: CVE-2025-40140

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-11-12T11:15:43.790

Modified: 2025-11-12T16:19:12.850

Link: CVE-2025-40140

cve-icon Redhat

Severity : Important

Publid Date: 2025-11-12T00:00:00Z

Links: CVE-2025-40140 - Bugzilla