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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedAug 22, 2025
First seenAug 22, 2025
How to fix
Update
- linux linux_kernel5.4.297, 5.10.241, 5.15.190, 6.1.148, 6.6.101, 6.12.41, 6.15.9 or later
Patches
- git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33
- git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8
- git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57
- git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934
- git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9
- git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd
- git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b
- git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.17 ≤ v < 5.4.297, 5.5 ≤ v < 5.10.241, 5.11 ≤ v < 5.15.190, 5.16 ≤ v < 6.1.148, 6.2 ≤ v < 6.6.101, 6.7 ≤ v < 6.12.41, 6.13 ≤ v < 6.15.9, 6.16 | 5.4.297, 5.10.241, 5.15.190, 6.1.148, 6.6.101, 6.12.41, 6.15.9 |
| debian debian_linux | 11.0 | — |
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