diff --git a/usr/lib/sysctl.d/990-security-misc.conf b/usr/lib/sysctl.d/990-security-misc.conf
index 04e9e31..f660d54 100644
--- a/usr/lib/sysctl.d/990-security-misc.conf
+++ b/usr/lib/sysctl.d/990-security-misc.conf
@@ -67,6 +67,9 @@ kernel.randomize_va_space=2
 kernel.unprivileged_bpf_disabled=1
 net.core.bpf_jit_harden=2
 
+## Disable asynchronous I/O for all processes.
+kernel.io_uring_disabled=2
+
 #### meta start
 #### project Kicksecure
 #### category networking and security