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-rw-r--r--src/nxt_unit.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/nxt_unit.c b/src/nxt_unit.c
index b7ac9b61..ba0d912d 100644
--- a/src/nxt_unit.c
+++ b/src/nxt_unit.c
@@ -598,6 +598,13 @@ nxt_unit_process_msg(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
goto fail;
}
+ if (nxt_slow_path(fd < 0)) {
+ nxt_unit_alert(ctx, "#%"PRIu32": invalid fd %d for new port",
+ port_msg->stream, fd);
+
+ goto fail;
+ }
+
new_port_msg = recv_msg.start;
nxt_unit_debug(ctx, "#%"PRIu32": new_port: %d,%d fd %d",
@@ -622,6 +629,13 @@ nxt_unit_process_msg(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
break;
case _NXT_PORT_MSG_MMAP:
+ if (nxt_slow_path(fd < 0)) {
+ nxt_unit_alert(ctx, "#%"PRIu32": invalid fd %d for mmap",
+ port_msg->stream, fd);
+
+ goto fail;
+ }
+
rc = nxt_unit_incoming_mmap(ctx, port_msg->pid, fd);
break;