CVE-2026-23021
net: usb: pegasus: fix memory leak in update_eth_regs_async()
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: pegasus: fix memory leak in update_eth_regs_async() When asynchronously writing to the device registers and if usb_submit_urb() fail, the code fail to release allocated to this point resources.
INFO
Published Date :
Jan. 31, 2026, 12:16 p.m.
Last Modified :
Jan. 31, 2026, 12:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-23021
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.
No affected product recoded yet
Solution
- Review and update error handling in update_eth_regs_async.
- Ensure all allocated resources are freed on usb_submit_urb() failure.
- Apply the patch resolving the memory leak.
- Update the Linux kernel to the patched version.
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-2026-23021.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23021 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-2026-23021
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-2026-23021 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23021 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.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jan. 31, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: usb: pegasus: fix memory leak in update_eth_regs_async() When asynchronously writing to the device registers and if usb_submit_urb() fail, the code fail to release allocated to this point resources. Added Reference https://git.kernel.org/stable/c/471dfb97599eec74e0476046b3ef8e7037f27b34 Added Reference https://git.kernel.org/stable/c/5397ea6d21c35a17707e201a60761bdee00bcc4e Added Reference https://git.kernel.org/stable/c/93f18eaa190374e0f2d253e3b1a65cee19a7abe6 Added Reference https://git.kernel.org/stable/c/a40af9a2904a1ab8ce61866ebe2a894ef30754ba Added Reference https://git.kernel.org/stable/c/ac5d92d2826dec51e5d4c6854865bc5817277452 Added Reference https://git.kernel.org/stable/c/afa27621a28af317523e0836dad430bec551eb54 Added Reference https://git.kernel.org/stable/c/ce6eef731aba23a988decea1df3b08cf978f7b01