CVEvulnerability
CVE-2025-38671
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-08-22
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Affected configurations
• linux linux kernel (>= 4.17 < 5.4.297)
• linux linux kernel (>= 5.5 < 5.10.241)
• linux linux kernel (>= 5.11 < 5.15.190)
• linux linux kernel (>= 5.16 < 6.1.148)
• linux linux kernel (>= 6.2 < 6.6.101)
• linux linux kernel (>= 6.7 < 6.12.41)
• linux linux kernel (>= 6.13 < 6.15.9)
• linux linux kernel 6.16
• debian debian linux 11.0
References
- https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33 Patch
- https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8 Patch
- https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57 Patch
- https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934 Patch
- https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9 Patch
- https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd Patch
- https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b Patch
- https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory