Simply move the free of ki_proc outside the realloc() loop.

diff --git a/src/ttyname.c b/src/ttyname.c
index 48c1fcaf2db9f6466eeeded995ab9432590f908f..b73325a645e78f0b0493a7813bbb1782c28bd95d 100644 (file)
--- a/src/ttyname.c
+++ b/src/ttyname.c
@@ -129,9 +129,8 @@ get_process_ttyname(void)
            sudo_debug_printf(SUDO_DEBUG_WARN,
                "unable to resolve tty via KERN_PROC: %s", strerror(errno));
        }
-       efree(ki_proc);
-       ki_proc = NULL;
     }
+    efree(ki_proc);
 
     /* If all else fails, fall back on ttyname(). */
     if (tty == NULL) {