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I. Basic Information for CVE-2025-21728
Vulnerability Information

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Vulnerability Title
bpf: Send signals asynchronously if !preemptible
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Send signals asynchronously if !preemptible BPF programs can execute in all kinds of contexts and when a program running in a non-preemptible context uses the bpf_send_signal() kfunc, it will cause issues because this kfunc can sleep. Change `irqs_disabled()` to `!preemptible()`.
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bpf_send_signal函数在不可抢占上下文中可能导致睡眠问题。
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 fd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 ~ feba1308bc5e8e04cee751d39fae8a9b407a9034 -
LinuxLinux 5.6 -
II. Public POCs for CVE-2025-21728
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III. Intelligence Information for CVE-2025-21728
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IV. Related Vulnerabilities
V. Comments for CVE-2025-21728

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