import glibc-2.28-101.el8.src.rpm

Signed-off-by: zhangbinchen <zhangbinchen@openanolis.org>

glibc-rh1651283-1.patch

@@ -0,0 +1,31 @@
+commit d6db68e66dff25d12c3bc5641b60cbd7fb6ab44f
+Author: Moritz Eckert <m.eckert@cs.ucsb.edu>
+Date:   Thu Aug 16 21:08:36 2018 -0400
+
+    malloc: Mitigate null-byte overflow attacks
+    
+    * malloc/malloc.c (_int_free): Check for corrupt prev_size vs size.
+    (malloc_consolidate): Likewise.
+
+diff --git a/malloc/malloc.c b/malloc/malloc.c
+index 13c52f376859562d..e450597e2e527fb7 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);
+ 	}
+