From a89ce3cd7bd69fa99f21f902fef4758f342768bb Mon Sep 17 00:00:00 2001
From: noctuum <25441068+noctuum@users.noreply.github.com>
Date: Mon, 28 Sep 2026 16:18:02 +0500
Subject: [PATCH] Check first against last in parse_object

A command ending in `=` reaches it with an empty range.
---
 src/rpc/parse.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rpc/parse.cc b/src/rpc/parse.cc
index e49dde66..b4414665 100644
--- a/src/rpc/parse.cc
+++ b/src/rpc/parse.cc
@@ -161,7 +161,7 @@ parse_object(const char* first, const char* last, torrent::Object* dest, bool (*
   if (++depth >= max_parse_depth)
     throw torrent::input_error("Max parse depth reached.");
 
-  if (*first == '{') {
+  if (first != last && *first == '{') {
     *dest = torrent::Object::create_list();
     first = parse_list(first + 1, last, dest, &parse_is_delim_block, depth);
     first = parse_skip_wspace(first, last);
@@ -171,7 +171,7 @@ parse_object(const char* first, const char* last, torrent::Object* dest, bool (*
 
     return ++first;
 
-  } else if (*first == '(') {
+  } else if (first != last && *first == '(') {
     int32_t parentheses = 1;
 
     while (first + 1 != last && *(first + 1) == '(') {