2.6.25.6

 mm

diff --git a/mm/mmap.c b/mm/mmap.c
index a32d28c..96bdd73 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -242,10 +242,16 @@ asmlinkage unsigned long sys_brk(unsigned long brk)
    unsigned long rlim, retval;
    unsigned long newbrk, oldbrk;
    struct mm_struct *mm = current->mm;
+   unsigned long min_brk;
 
    down_write(&mm->mmap_sem);
 
-   if (brk < mm->start_brk)
+#ifdef CONFIG_COMPAT_BRK
+   min_brk = mm->end_code;
+#else
+   min_brk = mm->start_brk;
+#endif
+   if (brk < min_brk)
       goto out;
 
    /*