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I. Basic Information for CVE-2025-21863
Vulnerability Information

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Vulnerability Title
io_uring: prevent opcode speculation
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.
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,该漏洞源于未对操作码进行清理,可能导致推测执行攻击。
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 d3656344fea0339fb0365c8df4d2beba4e0089cd ~ b9826e3b26ec031e9063f64a7c735449c43955e4 -
LinuxLinux 5.6 -
II. Public POCs for CVE-2025-21863
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III. Intelligence Information for CVE-2025-21863
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IV. Related Vulnerabilities
V. Comments for CVE-2025-21863

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