From 47197b9ae9be5f99f21e5c4901c98c50cbc6c0d0 Mon Sep 17 00:00:00 2001
From: Packit Service <user-cont-team+packit-service@redhat.com>
Date: Feb 12 2021 08:43:09 +0000
Subject: Apply patch glibc-rh1651283-1.patch


patch_name: glibc-rh1651283-1.patch
present_in_specfile: true
location_in_specfile: 68

---

diff --git a/malloc/malloc.c b/malloc/malloc.c
index 13c52f3..e450597 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -4306,6 +4306,8 @@ _int_free (mstate av, mchunkptr p, int have_lock)
       prevsize = prev_size (p);
       size += prevsize;
       p = chunk_at_offset(p, -((long) prevsize));
+      if (__glibc_unlikely (chunksize(p) != prevsize))
+        malloc_printerr ("corrupted size vs. prev_size while consolidating");
       unlink(av, p, bck, fwd);
     }
 
@@ -4467,6 +4469,8 @@ static void malloc_consolidate(mstate av)
 	  prevsize = prev_size (p);
 	  size += prevsize;
 	  p = chunk_at_offset(p, -((long) prevsize));
+	  if (__glibc_unlikely (chunksize(p) != prevsize))
+	    malloc_printerr ("corrupted size vs. prev_size in fastbins");
 	  unlink(av, p, bck, fwd);
 	}