---

yaml --- r: 198734 b: refs/heads/master c: e0129ef h: refs/heads/master v: v3
git-mirror · May 27, 2010 · e39b342 · e39b342
1 parent 2f95d9a
commit e39b342
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9c1a125921d146f22cf28ff366ff69fd602a0e9b
+refs/heads/master: e0129ef91ed758c06b6557c36124acfb2e1c7305
diff --git a/trunk/kernel/ptrace.c b/trunk/kernel/ptrace.c
@@ -596,18 +596,24 @@ int ptrace_request(struct task_struct *child, long request,
 
 #ifdef CONFIG_BINFMT_ELF_FDPIC
 	case PTRACE_GETFDPIC: {
+		struct mm_struct *mm = get_task_mm(child);
 		unsigned long tmp = 0;
 
+		ret = -ESRCH;
+		if (!mm)
+			break;
+
 		switch (addr) {
 		case PTRACE_GETFDPIC_EXEC:
-			tmp = child->mm->context.exec_fdpic_loadmap;
+			tmp = mm->context.exec_fdpic_loadmap;
 			break;
 		case PTRACE_GETFDPIC_INTERP:
-			tmp = child->mm->context.interp_fdpic_loadmap;
+			tmp = mm->context.interp_fdpic_loadmap;
 			break;
 		default:
 			break;
 		}
+		mmput(mm);
 
 		ret = put_user(tmp, (unsigned long __user *) data);
 		break;