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I. Basic Information for CVE-2025-39822
Vulnerability Information

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Vulnerability Title
io_uring/kbuf: fix signedness in this_len calculation
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: fix signedness in this_len calculation When importing and using buffers, buf->len is considered unsigned. However, buf->len is converted to signed int when committing. This can lead to unexpected behavior if the buffer is large enough to be interpreted as a negative value. Make min_t calculation unsigned.
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,该漏洞源于缓冲区长度计算中存在符号问题,可能导致意外行为。
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 cf9536e550dd243a1681fdbf804221527da20a80 ~ f4f411c068402c370c4f9a9d4950a97af97bbbb1 -
LinuxLinux 6.15 -
II. Public POCs for CVE-2025-39822
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III. Intelligence Information for CVE-2025-39822
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IV. Related Vulnerabilities
V. Comments for CVE-2025-39822

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