CVE-2025-38530

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl812: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & board->irq_bits) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts.
CVSS

No CVSS.

Configurations

No configuration.

History

16 Aug 2025, 12:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-08-16 12:15

Updated : 2025-08-16 12:15


NVD link : CVE-2025-38530

Mitre link : CVE-2025-38530

CVE.ORG link : CVE-2025-38530


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Products Affected

No product.

CWE

No CWE.