CVE-2026-31389
spi: fix use-after-free on controller registration failure
Description
In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free (of driver resources) and unclocked register accesses.
INFO
Published Date :
April 3, 2026, 4:16 p.m.
Last Modified :
April 3, 2026, 4:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-31389
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
- Apply the patch for SPI controller registration failure.
- Ensure per-cpu statistics allocation succeeds.
- Deregister driver resources on allocation failure.
- Avoid unclocked register accesses.
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-2026-31389.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-31389 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-2026-31389
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-2026-31389 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-31389 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. 03, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free (of driver resources) and unclocked register accesses. Added Reference https://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b Added Reference https://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba Added Reference https://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051 Added Reference https://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7 Added Reference https://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9 Added Reference https://git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2