uml: boot broken due to buffer overrun

[linux-2.6-omap-h63xx.git] / arch / um / drivers / mconsole_kern.c

diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 9820fdbb9c73488560ea9df6a25ba058d9ca3292..8f44ebb0dec82286e85838369d8fdfd9de929ae6 100644 (file)
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -1,24 +1,27 @@
 /*
  * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org)
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ * Copyright (C) 2001 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
-#include "linux/console.h"
-#include "linux/ctype.h"
-#include "linux/interrupt.h"
-#include "linux/list.h"
-#include "linux/mm.h"
-#include "linux/module.h"
-#include "linux/notifier.h"
-#include "linux/reboot.h"
-#include "linux/proc_fs.h"
-#include "linux/slab.h"
-#include "linux/syscalls.h"
-#include "linux/utsname.h"
-#include "linux/workqueue.h"
-#include "linux/mutex.h"
-#include "asm/uaccess.h"
+#include <linux/console.h>
+#include <linux/ctype.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/syscalls.h>
+#include <linux/utsname.h>
+#include <linux/socket.h>
+#include <linux/un.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+#include <asm/uaccess.h>
+
 #include "init.h"
 #include "irq_kern.h"
 #include "irq_user.h"
@@ -144,8 +147,8 @@ void mconsole_proc(struct mc_request *req)
        }
        up_write(&super->s_umount);
 
-       nd.dentry = super->s_root;
-       nd.mnt = NULL;
+       nd.path.dentry = super->s_root;
+       nd.path.mnt = NULL;
        nd.flags = O_RDONLY + 1;
        nd.last_type = LAST_ROOT;
 
@@ -158,7 +161,7 @@ void mconsole_proc(struct mc_request *req)
                goto out_kill;
        }
 
-       file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+       file = dentry_open(nd.path.dentry, nd.path.mnt, O_RDONLY);
        if (IS_ERR(file)) {
                mconsole_reply(req, "Failed to open file", 1, 0);
                goto out_kill;
@@ -765,7 +768,7 @@ void mconsole_stack(struct mc_request *req)
                return;
        }
 
-       to = find_task_by_pid(pid_requested);
+       to = find_task_by_pid_ns(pid_requested, &init_pid_ns);
        if ((to == NULL) || (pid_requested == 0)) {
                mconsole_reply(req, "Couldn't find that pid", 1, 0);
                return;
@@ -784,7 +787,7 @@ static int __init mconsole_init(void)
        /* long to avoid size mismatch warnings from gcc */
        long sock;
        int err;
-       char file[256];
+       char file[UNIX_PATH_MAX];
 
        if (umid_file_name("mconsole", file, sizeof(file)))
                return -1;