From d91769b72ecff1b02fc23b93216cb2f958005e45 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf@nereid.pl>
Date: Mon, 3 Aug 2026 00:06:03 +0200
Subject: [PATCH] Check if there's a parent directory to go to on .. in
 NormalizePath.

---
 public/client/TracyCallstack.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/public/client/TracyCallstack.cpp b/public/client/TracyCallstack.cpp
index a671960f..a85d7758 100644
--- a/public/client/TracyCallstack.cpp
+++ b/public/client/TracyCallstack.cpp
@@ -1283,9 +1283,12 @@ char* NormalizePath( const char* path )
         case 2:
             if( memcmp( ptr, "..", 2 ) == 0 )
             {
-                const char* back = res + rsz - 1;
-                while( back > res && *back != '/' ) back--;
-                rsz = back - res;
+                if( rsz > 0 )
+                {
+                    const char* back = res + rsz - 1;
+                    while( back > res && *back != '/' ) back--;
+                    rsz = back - res;
+                }
                 ptr = next + 1;
                 continue;
             }