From 040531292147e8e4847d6c666746a426403d0cf5 Mon Sep 17 00:00:00 2001
From: Jason Evans <je@fb.com>
Date: Fri, 20 Dec 2013 15:52:01 -0800
Subject: [PATCH] Fix an uninitialized variable read in xallocx().

---
 src/jemalloc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/jemalloc.c b/src/jemalloc.c
index b8a4fb07..5845fe9a 100644
--- a/src/jemalloc.c
+++ b/src/jemalloc.c
@@ -1625,6 +1625,9 @@ je_xallocx(void *ptr, size_t size, size_t extra, int flags)
 		}
 		if (iralloct(ptr, size, extra, alignment, zero, true,
 		    try_tcache_alloc, try_tcache_dalloc, arena) == NULL) {
+			if (config_stats == false && (config_valgrind == false
+			    || opt_valgrind == false))
+				old_usize = isalloc(ptr, false);
 			usize = old_usize;
 			goto label_not_moved;
 		}