CVE-2025-21728

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxfd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 < feba1308bc5e8e04cee751d39fae8a9b407a9034affected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < ce51eab2070e295d298f42a2f1db269cd1b56d55affected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4affected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < be42a09fe898635b0093c0c8dac1bfabe225c240affected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < eeef8e65041a031bd8a747a392c14b76a123a12caffected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < 78b97783496b454435639937db3303e900a24d3faffected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < 092fc76b7ab4163e008f9cde596a58dad2108260affected
LinuxLinux1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < 87c544108b612512b254c8f79aa5c0a8546e2cc4affected
LinuxLinux7930d01afb7281edd9782971e0cca6fe587c7a7baffected
LinuxLinux5.4.33 < 5.4.291affected
LinuxLinux5.5.18 < 5.6affected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux5.4.291 <= 5.4.*unaffected
LinuxLinux5.10.235 <= 5.10.*unaffected
LinuxLinux5.15.179 <= 5.15.*unaffected
LinuxLinux6.1.129 <= 6.1.*unaffected
LinuxLinux6.6.76 <= 6.6.*unaffected
LinuxLinux6.12.13 <= 6.12.*unaffected
LinuxLinux6.13.2 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

Additional References

References