mds: MDSMap: adjust buffer size for uint64 values with more than 5 chars

Fixes: #6620
Signed-off-by: Joao Eduardo Luis <joao.luis@inktank.com>

diff --git a/src/mds/MDSMap.cc b/src/mds/MDSMap.cc
index f1ab9b112d887c028e0b66867e1d20e4c8b7e198..05b0c42c20ab3a476d5e0f8be13e0b7f016157e7 100644 (file)
--- a/src/mds/MDSMap.cc
+++ b/src/mds/MDSMap.cc
@@ -114,7 +114,7 @@ void MDSMap::dump(Formatter *f) const
   f->close_section();
   f->open_object_section("info");
   for (map<uint64_t,mds_info_t>::const_iterator p = mds_info.begin(); p != mds_info.end(); ++p) {
-    char s[10];
+    char s[25]; // 'gid_' + len(str(ULLONG_MAX)) + '\0'
     sprintf(s, "gid_%llu", (long long unsigned)p->first);
     f->open_object_section(s);
     p->second.dump(f);