Medium 5.5Published Sep 15, 2025

CVE-2025-39801usb: dwc3: Remove WARN_ON for device endpoint command timeouts

Updated under an hour ago (Oct 28, 2026, 2:00 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: Remove WARN_ON for device endpoint command timeouts This commit addresses a rarely observed endpoint command timeout which causes kernel panic due to warn when 'panic_on_warn' is enabled and unnecessary call trace prints when 'panic_on_warn' is disabled. It is seen during fast software-controlled connect/disconnect testcases. The following is one such endpoint command timeout that we observed: 1. Connect ======= ->dwc3_thread_interrupt ->dwc3_ep0_interrupt ->configfs_composite_setup ->composite_setup ->usb_ep_queue ->dwc3_gadget_ep0_queue ->__dwc3_gadget_ep0_queue ->__dwc3_ep0_do_control_data ->dwc3_send_gadget_ep_cmd 2. Disconnect ========== ->dwc3_thread_interrupt ->dwc3_gadget_disconnect_interrupt ->dwc3_ep0_reset_state ->dwc3_ep0_end_control_data ->dwc3_send_gadget_ep_cmd In the issue scenario, in Exynos platforms, we observed that control transfers for the previous connect have not yet been completed and end transfer command sent as a part of the disconnect sequence and processing of USB_ENDPOINT_HALT feature request from the host timeout. This maybe an expected scenario since the controller is processing EP commands sent as a part of the previous connect. It maybe better to remove WARN_ON in all places where device endpoint commands are sent to avoid unnecessary kernel panic due to warn.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: May 12, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 72246da40f3719af3bfd104a2365b32537c27d83 before dfe40159eec6ca63b40133bfa783eee2e3ed829f; 72246da40f3719af3bfd104a2365b32537c27d83 builds before 5a1a847d841505dba2bd85602daf5c218e1d85b8; 72246da40f3719af3bfd104a2365b32537c27d83 builds before 84c95dbf5bece56086cdb65a64162af35158bdd9; from 72246da40f3719af3bfd104a2365b32537c27d83 before f49697dfba2915a9ff36f94604eb76fa61413929; from 72246da40f3719af3bfd104a2365b32537c27d83 before db27482b9db340402e05d4e9b75352bbaca51af2; 72246da40f3719af3bfd104a2365b32537c27d83 builds before 45eae113dccaf8e502090ecf5b3d9e9b805add6f	CNA record
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name)	before V5.0	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.2 before 5.15.190; from 5.16 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.44; from 6.13 before 6.16.4; 6.17; 6.17	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

References

https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f	patch
https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8	patch
https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9	patch
https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929	patch
https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2	patch
https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f	patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	third-party-advisory
https://cert-portal.siemens.com/productcert/html/ssa-032379.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.