Missing ENOMEM in realloc_check wrapper (bug 27870)

When MALLOC_CHECK_ is non-zero, the realloc hook missed to set errno to
ENOMEM when called with too big size.  Run the test tst-malloc-too-large
also with MALLOC_CHECK_=3 to catch that.

1 files changed, 4 insertions, 1 deletions

diff --git a/malloc/hooks.c b/malloc/hooks.c
index c91f9502ba..8080c3f40e 100644
--- a/malloc/hooks.c
+++ b/malloc/hooks.c
@@ -321,7 +321,10 @@ realloc_check (void *oldmem, size_t bytes, const void *caller)
   const INTERNAL_SIZE_T oldsize = chunksize (oldp);
 
   if (!checked_request2size (rb, &chnb))
-    goto invert;
+    {
+      __set_errno (ENOMEM);
+      goto invert;
+    }
 
   __libc_lock_lock (main_arena.mutex);