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I. Basic Information for CVE-2025-40193
Vulnerability Information

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Vulnerability Title
xtensa: simdisk: add input size check in proc_write_simdisk
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xtensa: simdisk: add input size check in proc_write_simdisk A malicious user could pass an arbitrarily bad value to memdup_user_nul(), potentially causing kernel crash. This follows the same pattern as commit ee76746387f6 ("netdevsim: prevent bad user input in nsim_dev_health_break_write()")
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,该漏洞源于输入大小检查不足,可能导致内核崩溃。
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 b6c7e873daf765e41233b9752083b66442703b7a ~ f40405ccfb87b71175f2d5d004c0b8a0aebcc2cf -
LinuxLinux 3.9 -
II. Public POCs for CVE-2025-40193
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III. Intelligence Information for CVE-2025-40193
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IV. Related Vulnerabilities
V. Comments for CVE-2025-40193

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