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I. Basic Information for CVE-2025-21687
Vulnerability Information

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Vulnerability Title
vfio/platform: check the bounds of read/write syscalls
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vfio/platform: check the bounds of read/write syscalls count and offset are passed from user space and not checked, only offset is capped to 40 bits, which can be used to read/write out of bounds of the device.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于vfio/platform驱动中read/write系统调用的边界检查缺失。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux 6e3f264560099869f68830cb14b3b3e71e5ac76a ~ f21636f24b6786c8b13f1af4319fa75ffcf17f38 -
LinuxLinux 4.1 -
II. Public POCs for CVE-2025-21687
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III. Intelligence Information for CVE-2025-21687
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IV. Related Vulnerabilities
V. Comments for CVE-2025-21687

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