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.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
23 Jan 2026, 02:34
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-617 | |
| First Time |
Linux
Debian Debian debian Linux Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f - Patch | |
| References | () https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8 - Patch | |
| References | () https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9 - Patch | |
| References | () https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2 - Patch | |
| References | () https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f - Patch | |
| References | () https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929 - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory | |
| CPE | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
03 Nov 2025, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
15 Sep 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-15 13:15
Updated : 2026-01-23 02:34
NVD link : CVE-2025-39801
Mitre link : CVE-2025-39801
CVE.ORG link : CVE-2025-39801
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-617
Reachable Assertion
