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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-54118 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: serial: sc16is7xx: setup GPIO controller later in probe The GPIO controller component of the sc16is7xx driver is setup too early, which can result in a race condition where another device tries to utilise the GPIO lines before the sc16is7xx device has finished initialising. This issue manifests itself as an Oops when the GPIO lines are configured: Unable to handle kernel read from unreadable memory at virtual address ... pc : sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx] lr : sc16is7xx_gpio_direction_output+0x4c/0x108 [sc16is7xx] ... Call trace: sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx] gpiod_direction_output_raw_commit+0x64/0x318 gpiod_direction_output+0xb0/0x170 create_gpio_led+0xec/0x198 gpio_led_probe+0x16c/0x4f0 platform_drv_probe+0x5c/0xb0 really_probe+0xe8/0x448 driver_probe_device+0xe8/0x138 __device_attach_driver+0x94/0x118 bus_for_each_drv+0x8c/0xe0 __device_attach+0x100/0x1b8 device_initial_probe+0x28/0x38 bus_probe_device+0xa4/0xb0 deferred_probe_work_func+0x90/0xe0 process_one_work+0x1c4/0x480 worker_thread+0x54/0x430 kthread+0x138/0x150 ret_from_fork+0x10/0x1c This patch moves the setup of the GPIO controller functions to later in the probe function, ensuring the sc16is7xx device has already finished initialising by the time other devices try to make use of the GPIO lines. The error handling has also been reordered to reflect the new initialisation order.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/17b96b5c19bec791b433890549e44ca523dc82aa kernel.org
https://git.kernel.org/stable/c/49b326ce8a686428d8cbb82ed74fc88ed3f95a51 kernel.org
https://git.kernel.org/stable/c/b71ff206707855ce73c04794c76f7b678b2d4f72 kernel.org
https://git.kernel.org/stable/c/c8f71b49ee4d28930c4a6798d1969fa91dc4ef3e kernel.org
https://git.kernel.org/stable/c/f57c2164d082a36d177ab7fbf54c18970df89c22 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-54118
NVD Published Date:
12/24/2025
NVD Last Modified:
12/24/2025
Source:
kernel.org