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I. Basic Information for CVE-2025-40291
Vulnerability Information

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Vulnerability Title
io_uring: fix regbuf vector size truncation
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix regbuf vector size truncation There is a report of io_estimate_bvec_size() truncating the calculated number of segments that leads to corruption issues. Check it doesn't overflow "int"s used later. Rough but simple, can be improved on top.
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io_estimate_bvec_size截断计算段数,可能导致数据损坏。
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 9ef4cbbcb4ac3786a1a4164507511b76b2a572c5 ~ 826ce37a842633efe1bb763e4b13045d74060d72 -
LinuxLinux 6.15 -
II. Public POCs for CVE-2025-40291
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III. Intelligence Information for CVE-2025-40291
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IV. Related Vulnerabilities
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