texinfo filter: fix buffer overflow

Bug found using OSS-Fuzz.
GNUAspell · Dec 22, 2019 · 8d964a0 · 8d964a0
1 parent 40c0207
commit 8d964a0
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/modules/filter/texinfo.cpp b/modules/filter/texinfo.cpp
@@ -161,7 +161,7 @@ namespace {
 
       } else if (!seen_input && *cur == '\\' && stop - cur >= 6 
                  && cur[1] == 'i' && cur[2] == 'n' && cur[3] == 'p' 
-                 && cur[4] == 'u' && cur[5] == 't') {
+                 && cur[4] == 'u' && cur[5] == 't' /* i.e '\input' */) {
 
         last_command.clear();
         for (int i = 0; i != 6; ++i)
@@ -170,7 +170,6 @@ namespace {
         ++ignore;
         in_line_command = true;
         seen_input = true;
-        ++cur;
 
       } else if (last_command == "end") {