CVE-2025-38529
Linux Comedi Out-of-Bounds Shift Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: comedi: aio_iiro_16: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & 0xdcfc) { 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.
INFO
Published Date :
Aug. 16, 2025, 12:15 p.m.
Last Modified :
Aug. 18, 2025, 8:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2025-38529
.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-38529
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-38529
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-38529
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-38529
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 16, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: comedi: aio_iiro_16: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & 0xdcfc) { 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. Added Reference https://git.kernel.org/stable/c/43ddd82e6a91913cea1c078e782afd8de60c3a53 Added Reference https://git.kernel.org/stable/c/66acb1586737a22dd7b78abc63213b1bcaa100e4 Added Reference https://git.kernel.org/stable/c/955e8835855fed8e87f7d8c8075564a1746c1b4c Added Reference https://git.kernel.org/stable/c/e0f3c0867d7d231c70984f05c97752caacd0daba Added Reference https://git.kernel.org/stable/c/ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7