🛡️ CVE-2025-38530
🟠 CVSS 7.1 — High ✅ No Known Exploit CWE-125 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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 <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.

Details

Severity HIGH
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2025-08-16
Updated 2026-06-02
Modified 2026-01-07

Affected Packages

Software From version Fixed in
debian-linux — —
linux-kernel — —

References

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