CVE-2025-38482
comedi: das6402: Fix bit shift out of bounds
Description
In the Linux kernel, the following vulnerability has been resolved: comedi: das6402: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */ if ((1 << it->options[1]) & 0x8cec) { 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 :
July 28, 2025, 12:15 p.m.
Last Modified :
Aug. 28, 2025, 3:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to the latest stable version.
- Ensure all inputs for IRQ handling are validated.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-38482.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-38482 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-2025-38482
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).
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The following list is the news that have been mention
CVE-2025-38482 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-38482 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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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 28, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/73f34d609397805c20d6b2ef5c07a4cbf7c4d63a Added Reference https://git.kernel.org/stable/c/a15e9c175f783298c4ee48146be6841335400406 Added Reference https://git.kernel.org/stable/c/de8da1063cce9234d55c8270d9bdf4cf84411c80 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 28, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: comedi: das6402: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */ if ((1 << it->options[1]) & 0x8cec) { 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/3eab654f5d199ecd45403c6588cda63e491fcfca Added Reference https://git.kernel.org/stable/c/4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4 Added Reference https://git.kernel.org/stable/c/70f2b28b5243df557f51c054c20058ae207baaac Added Reference https://git.kernel.org/stable/c/8a3637027ceeba4ca5e500b23cb7d24c25592513 Added Reference https://git.kernel.org/stable/c/a18a42e77545afcacd6a2b8d9fc16191b87454df