fix(modern_bpf): recvmsg filler sending empty addres for udp connections

Signed-off-by: Gianmatteo Palmieri <mail@gian.im>
falcosecurity · Mar 28, 2024 · 082108f · 082108f
1 parent 209243e
commit 082108f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/driver/modern_bpf/programs/tail_called/events/syscall_dispatched_events/recvmsg.bpf.c b/driver/modern_bpf/programs/tail_called/events/syscall_dispatched_events/recvmsg.bpf.c
@@ -93,7 +93,7 @@ int BPF_PROG(recvmsg_x,
 
 		/* Parameter 4: tuple (type: PT_SOCKTUPLE) */
 		uint32_t socket_fd = (uint32_t)args[0];
-		auxmap__store_socktuple_param(auxmap, socket_fd, INBOUND, NULL);
+		auxmap__store_socktuple_param(auxmap, socket_fd, INBOUND, msghhdr.msg_name);
 
 		/* Parameter 5: msg_control (type: PT_BYTEBUF) */
 		if (msghhdr.msg_control != NULL)