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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38671 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: qup: jump out of the loop in case of timeout Original logic only sets the return value but doesn't jump out of the loop if the bus is kept active by a client. This is not expected. A malicious or buggy i2c client can hang the kernel in this case and should be avoided. This is observed during a long time test with a PCA953x GPIO extender. Fix it by changing the logic to not only sets the return value, but also jumps out of the loop and return to the caller with -ETIMEDOUT.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33 kernel.org Patch 
https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8 kernel.org Patch 
https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57 kernel.org Patch 
https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934 kernel.org Patch 
https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9 kernel.org Patch 
https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd kernel.org Patch 
https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b kernel.org Patch 
https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html CVE Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html CVE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38671
NVD Published Date:
08/22/2025
NVD Last Modified:
01/08/2026
Source:
kernel.org