CVEvulnerability

CVE-2025-38671

5.5 MEDIUM Published 2025-08-22 Modified 2026-06-17 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