CVE-2025-40051
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-10-28
Last updated on: 2025-10-30
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
vhost: vringh: Modify the return value check
The return value of copy_from_iter and copy_to_iter can't be negative,
check whether the copied lengths are equal.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in the Linux kernel involves the vhost vringh component where the return value checks for the functions copy_from_iter and copy_to_iter were incorrect. These functions' return values cannot be negative, so the fix was to check whether the copied lengths are equal instead of checking for negative return values.
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