CVE-2025-38671
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.
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33Patch
- https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8Patch
- https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57Patch
- https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934Patch
- https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9Patch
- https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecdPatch
- https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0bPatch
- https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddcPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.