winedbg: Avoid passing a non allocated buffer to HeapFree.

Latest changes to heap management can lead to a crash in this situation. Signed-off-by: Eric Pouech <eric.pouech@gmail.com>

winedbg: Avoid passing a non allocated buffer to HeapFree.
a9225779 · Eric Pouech · Alexandre Julliard · df65aee9 · a9225779
Commit a9225779 authored Dec 09, 2022 by Eric Pouech Committed by Alexandre Julliard Dec 09, 2022
Hide whitespace changes
Inline Side-by-side

Showing with 2 additions and 1 deletion

types.c programs/winedbg/types.c +2 -1

No files found.
--- a/programs/winedbg/types.c
+++ b/programs/winedbg/types.c
@@ -820,7 +820,8 @@ BOOL types_print_type(const struct dbg_type* type, BOOL details, const WCHAR* va
    }
    if (varname && !printed) dbg_printf(" %ls", varname);

-    HeapFree(GetProcessHeap(), 0, ptr);
+    if (name == ptr)
+        HeapFree(GetProcessHeap(), 0, ptr);
    return TRUE;
 }