CVE-2023-53054

MEDIUM EPSS 5.8%
Published May 2, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 2, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: fix a devres leak in hw_enable upon suspend resume Each time the platform goes to low power, PM suspend / resume routines call: __dwc2_lowlevel_hw_enable -> devm_add_action_or_reset(). This adds a new devres each time. This may also happen at runtime, as dwc2_lowlevel_hw_enable() can be called from udc_start(). This can be seen with tracing: - echo 1 > /sys/kernel/debug/tracing/events/dev/devres_log/enable - go to low power - cat /sys/kernel/debug/tracing/trace A new "ADD" entry is found upon each low power cycle: ... devres_log: 49000000.usb-otg ADD 82a13bba devm_action_release (8 bytes) ... devres_log: 49000000.usb-otg ADD 49889daf devm_action_release (8 bytes) ... A second issue is addressed here: - regulator_bulk_enable() is called upon each PM cycle (suspend/resume). - regulator_bulk_disable() never gets called. So the reference count for these regulators constantly increase, by one upon each low power cycle, due to missing regulator_bulk_disable() call in __dwc2_lowlevel_hw_disable(). The original fix that introduced the devm_add_action_or_reset() call, fixed an issue during probe, that happens due to other errors in dwc2_driver_probe() -> dwc2_core_reset(). Then the probe fails without disabling regulators, when dr_mode == USB_DR_MODE_PERIPHERAL. Rather fix the error path: disable all the low level hardware in the error path, by using the "hsotg->ll_hw_enabled" flag. Checking dr_mode has been introduced to avoid a dual call to dwc2_lowlevel_hw_disable(). "ll_hw_enabled" should achieve the same (and is used currently in the remove() routine).

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
5.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥4.4.233  –  <4.5
linuxlinux_kernel*≥4.9.233  –  <4.10
linuxlinux_kernel*≥4.14.194  –  <4.15
linuxlinux_kernel*≥4.19.140  –  <4.20
linuxlinux_kernel*≥5.4.59  –  <5.5
linuxlinux_kernel*≥5.7.16  –  <5.8
linuxlinux_kernel*≥5.8.2  –  <5.10.177
linuxlinux_kernel*≥5.11  –  <5.15.105
linuxlinux_kernel*≥5.16  –  <6.1.22
linuxlinux_kernel*≥6.2  –  <6.2.9
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/1f01027c51eb16145e8e07fafea3ca07ef102d06
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cba76e1fb896b573f09f51aa299223276a77bc90
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f747313249b74f323ddf841a9c8db14d989f296a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1f01027c51eb16145e8e07fafea3ca07ef102d06
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cba76e1fb896b573f09f51aa299223276a77bc90
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f747313249b74f323ddf841a9c8db14d989f296a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d
    Patch