CVE-2025-38671

medium

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.

References

https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd

https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934

https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57

https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8

https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33

Details

Source: Mitre, NVD

Published: 2025-08-22

Updated: 2025-08-22

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00018