CVE-2025-39801

MEDIUM EPSS 3.6%
Published Sep 15, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-617

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.2  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.149
linuxlinux_kernel*≥6.2  –  <6.6.103
linuxlinux_kernel*≥6.7  –  <6.12.44
linuxlinux_kernel*≥6.13  –  <6.16.4
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
debiandebian_linux11.0any

References 8

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-032379.html
  • git.kernel.org https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929
    Patch