CVE-2025-38671 - Linux Kernel i2c Qup Timeout Information Disclosure Vulnerability
CVE ID : CVE-2025-38671
Published : Aug. 22, 2025, 4:15 p.m. | 52 minutes 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.
Severity: 0.0 | NA
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Published : Aug. 22, 2025, 4:15 p.m. | 52 minutes 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.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...