[PATCH] Missing acess_ok() check in aio

BTW, while merging aio from 2.5 to 2.4 and fixing and porting the libaio
(in particular thanks to one of Ben's testcases that was checkin for
this specific case) I found this bug in 2.5

diff --git a/fs/aio.c b/fs/aio.c
index 11e2e91bcf85e316f92343ed4de6a6a3e2b2d0b0..1eedbcda29e0e40c40de36f826b4d3d30d494369 100644 (file)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -992,7 +992,7 @@ asmlinkage long sys_io_submit(aio_context_t ctx_id, long nr,
                        break;
                }
 
-               if (unlikely(__copy_from_user(&tmp, user_iocb, sizeof(tmp)))) {
+               if (unlikely(copy_from_user(&tmp, user_iocb, sizeof(tmp)))) {
                        ret = -EFAULT;
                        break;
                }