CVE-2025-21728 - Linux Kernel BPF Signal Injection Privilege Escalation Vulnerability

CVE-2025-21728 - Linux Kernel BPF Signal Injection Privilege Escalation Vulnerability

https://cvefeed.io/rssfeed/latest.atom / Thu, 02/27/2025 - 03:47
CVE ID : CVE-2025-21728
Published : Feb. 27, 2025, 2:15 a.m. | 32 minutes ago
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()`.
Severity: 0.0 | NA
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