QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2025-21728

Back to search

CVE-2025-21728

Published: Feb 27, 2025

Modified: May 23, 2026

PUBLISHED

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()`.

VendorProductVersions

Linux

Linux

affected
fd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 - < feba1308bc5e8e04cee751d39fae8a9b407a9034
affected
1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 - < ce51eab2070e295d298f42a2f1db269cd1b56d55
affected
1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 - < e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4
affected
1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 - < be42a09fe898635b0093c0c8dac1bfabe225c240
affected
1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 - < eeef8e65041a031bd8a747a392c14b76a123a12c

+6 more versions

Linux

Linux

affected
5.6
unaffected
0 - < 5.6
unaffected
5.4.291 - <= 5.4.*
unaffected
5.10.235 - <= 5.10.*
unaffected
5.15.179 - <= 5.15.*

+5 more versions

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now