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I. Basic Information for CVE-2025-21789
Vulnerability Information

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Vulnerability Title
LoongArch: csum: Fix OoB access in IP checksum code for negative lengths
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: csum: Fix OoB access in IP checksum code for negative lengths Commit 69e3a6aa6be2 ("LoongArch: Add checksum optimization for 64-bit system") would cause an undefined shift and an out-of-bounds read. Commit 8bd795fedb84 ("arm64: csum: Fix OoB access in IP checksum code for negative lengths") fixes the same issue on ARM64.
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IP校验和代码中存在越界访问。
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 69e3a6aa6be21de6aaf38130fad97ecde34a193c ~ 964a8895704a22efc06a2a3276b624a5ae985a06 -
LinuxLinux 6.4 -
II. Public POCs for CVE-2025-21789
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III. Intelligence Information for CVE-2025-21789
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IV. Related Vulnerabilities
V. Comments for CVE-2025-21789

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