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I. Basic Information for CVE-2025-40021
Vulnerability Information

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Vulnerability Title
tracing: dynevent: Add a missing lockdown check on dynevent
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tracing: dynevent: Add a missing lockdown check on dynevent Since dynamic_events interface on tracefs is compatible with kprobe_events and uprobe_events, it should also check the lockdown status and reject if it is set.
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,该漏洞源于缺少动态事件接口的锁定检查,可能导致安全限制绕过。
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 17911ff38aa58d3c95c07589dbf5d3564c4cf3c5 ~ f3ac1f4eaba58e57943efa3e8b8d71fa7aab0abf -
LinuxLinux 5.4 -
II. Public POCs for CVE-2025-40021
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III. Intelligence Information for CVE-2025-40021
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IV. Related Vulnerabilities
V. Comments for CVE-2025-40021

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