CVE-2025-38671
i2c: qup: jump out of the loop in case of timeout
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
fbfab1ab065879370541caf0e514987368eb41b2 < cbec4406998185e0311ae97dfacc649f9cd79b0b fbfab1ab065879370541caf0e514987368eb41b2 < acfa2948be630ad857535cb36153697f3cbf9ca9 fbfab1ab065879370541caf0e514987368eb41b2 < d05ec13aa3eb868a60dc961b489053a643863ddc fbfab1ab065879370541caf0e514987368eb41b2 < c523bfba46c4b4d7676fb050909533a766698ecd fbfab1ab065879370541caf0e514987368eb41b2 < 0d33913fce67a93c1eb83396c3c9d6b411dcab33 fbfab1ab065879370541caf0e514987368eb41b2 < 42c4471b30fa203249f476dd42321cd7efb7f6a8 fbfab1ab065879370541caf0e514987368eb41b2 < 89459f168b78e5c801dc8b7ad037b62898bc4f57 fbfab1ab065879370541caf0e514987368eb41b2 < a7982a14b3012527a9583d12525cd0dc9f8d8934
Linux / Linux
4.17
References
git.kernel.org: https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b git.kernel.org: https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9 git.kernel.org: https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc git.kernel.org: https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd git.kernel.org: https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33 git.kernel.org: https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8 git.kernel.org: https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57 git.kernel.org: https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html