---

yaml --- r: 230817 b: refs/heads/master c: 5520e89 h: refs/heads/master i: 230815: 7f80343 v: v3
git-mirror · Jan 14, 2011 · d7c5946 · d7c5946
1 parent 40c9a89
commit d7c5946
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Showing 2 changed files with 10 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 32d6feadf4e17ea9b98071be9bbf402a74a4f818
+refs/heads/master: 5520e89485252c759ee60d313e9422447659947b
diff --git a/trunk/mm/mmap.c b/trunk/mm/mmap.c
@@ -254,7 +254,15 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	down_write(&mm->mmap_sem);
 
 #ifdef CONFIG_COMPAT_BRK
-	min_brk = mm->end_code;
+	/*
+	 * CONFIG_COMPAT_BRK can still be overridden by setting
+	 * randomize_va_space to 2, which will still cause mm->start_brk
+	 * to be arbitrarily shifted
+	 */
+	if (mm->start_brk > PAGE_ALIGN(mm->end_data))
+		min_brk = mm->start_brk;
+	else
+		min_brk = mm->end_data;
 #else
 	min_brk = mm->start_brk;
 #endif