CVE-2025-38671

MEDIUM EPSS 4.4%
Published Aug 22, 202510mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 22, 2025 10mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 15

VendorProductVersionRange
linuxlinux_kernel*≥4.17  –  <5.4.297
linuxlinux_kernel*≥5.5  –  <5.10.241
linuxlinux_kernel*≥5.11  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.148
linuxlinux_kernel*≥6.2  –  <6.6.101
linuxlinux_kernel*≥6.7  –  <6.12.41
linuxlinux_kernel*≥6.13  –  <6.15.9
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc
    Patch