CVE-2025-38483
comedi: das16m1: Fix bit shift out of bounds
Description
In the Linux kernel, the following vulnerability has been resolved: comedi: das16m1: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */ 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.
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.
- Apply the provided patch to the kernel source.
- Recompile and install the updated kernel.
- Reboot the system to load the new kernel.
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-2025-38483.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-38483 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-2025-38483
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-2025-38483 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-38483 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/539bdff832adac9ea653859fa0b6bc62e743329c Added Reference https://git.kernel.org/stable/c/b3c95fa508e5dc3da60520eea92a5241095ceef1 Added Reference https://git.kernel.org/stable/c/d1291c69f46d6572b2cf75960dd8975d7ab2176b -
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: das16m1: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */ 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. Added Reference https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077 Added Reference https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288 Added Reference https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0 Added Reference https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932 Added Reference https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269