* sec_helper.cc (security_descriptor::realloc): Call free first if

current security desriptor has been allocated by GetSecurityInfo.
2009-10-31 09:31:47 +00:00
parent b42441d32b
commit 7c16c02dbb
2 changed files with 8 additions and 0 deletions
--- a/winsup/cygwin/sec_helper.cc
+++ b/winsup/cygwin/sec_helper.cc
@ -288,6 +288,9 @@ security_descriptor::realloc (size_t nsize)
 {
  PSECURITY_DESCRIPTOR tmp;

+  /* Can't re-use buffer allocated by GetSecurityInfo. */
+  if (psd && !sd_size)
+    free ();
  if (!(tmp = (PSECURITY_DESCRIPTOR) ::realloc (psd, nsize)))
    return NULL;
  sd_size = nsize;