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CVE-2023-53551
usb: gadget: u_serial: Add null pointer check in gserial_resume
Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_resume Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this. Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.

INFO

Published Date :

Oct. 4, 2025, 4:15 p.m.

Last Modified :

Oct. 6, 2025, 2:56 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-53551 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Apply kernel updates to fix a null pointer dereference in the USB serial gadget driver.
  • Update the Linux kernel to the latest stable version.
  • Reboot the system after applying the update.
  • Verify the patch has been successfully applied.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-53551.

URL Resource
https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5
https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377
https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5
https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897
https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53551 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-53551 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-53551 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53551 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 04, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_resume Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this. Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.
    Added Reference https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5
    Added Reference https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377
    Added Reference https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5
    Added Reference https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897
    Added Reference https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.