Hello, 

There are times when b points to buf which is a stack variable. This
leads to a bad free. The current test actually guarantees the stack
will try to get freed. Simplest to just drop the variable and directly
test if b should get freed.


Signed-off-by: Steve Grubb <sgr...@redhat.com>


Index: src/main/connections.c
===================================================================
--- src/main/connections.c      (revision 72935)
+++ src/main/connections.c      (working copy)
@@ -421,7 +421,6 @@
     char buf[BUFSIZE], *b = buf;
     int res;
     const void *vmax = NULL; /* -Wall*/
-    int usedVasprintf = FALSE;
     va_list aq;
 
     va_copy(aq, ap);
@@ -434,7 +433,7 @@
            b = buf;
            buf[BUFSIZE-1] = '\0';
            warning(_("printing of extremely long output is truncated"));
-       } else usedVasprintf = TRUE;
+       }
     }
 #else
     if(res >= BUFSIZE) { /* res is the desired output length */
@@ -481,7 +480,7 @@
     } else
        con->write(b, 1, res, con);
     if(vmax) vmaxset(vmax);
-    if(usedVasprintf) free(b);
+    if(b != buf) free(b);
     return res;
 }

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