CVE-2026-31661
wifi: brcmsmac: Fix dma_free_coherent() size
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmsmac: Fix dma_free_coherent() size dma_alloc_consistent() may change the size to align it. The new size is saved in alloced. Change the free size to match the allocation size.
INFO
Published Date :
April 24, 2026, 3:16 p.m.
Last Modified :
April 24, 2026, 3:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-31661
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
- Update the Linux kernel to the latest version.
- Apply the patch for the brcmsmac driver.
- Recompile the kernel if necessary.
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-2026-31661.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-31661 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-2026-31661
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-2026-31661 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-31661 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
Apr. 24, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: brcmsmac: Fix dma_free_coherent() size dma_alloc_consistent() may change the size to align it. The new size is saved in alloced. Change the free size to match the allocation size. Added Reference https://git.kernel.org/stable/c/01f1330d3d1bee07e0c42d40cc48b7be8b6dad84 Added Reference https://git.kernel.org/stable/c/0f87777b74bcce29b966ec42d9aa8f9edd9b1667 Added Reference https://git.kernel.org/stable/c/12cd7632757a54ce586e36040210b1a738a0fc53 Added Reference https://git.kernel.org/stable/c/3c204a0fd079fa7a867151a47d830ad1c2db5177 Added Reference https://git.kernel.org/stable/c/4bf41c2731a0549e21f66180ff780b1e036639ab Added Reference https://git.kernel.org/stable/c/77263f053963dea9f3962505ac0c768853d7dc59 Added Reference https://git.kernel.org/stable/c/b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa Added Reference https://git.kernel.org/stable/c/f449676bab54fea1440775c8c915dadb323fe015