提交 9b171e0c 编写于 作者: J Jan Kara 提交者: Al Viro

ocfs2: fix possible use-after-free with AIO

Running AIO is pinning inode in memory using file reference. Once AIO
is completed using aio_complete(), file reference is put and inode can
be freed from memory. So we have to be sure that calling aio_complete()
is the last thing we do with the inode.
Signed-off-by: NJan Kara <jack@suse.cz>
Acked-by: NJeff Moyer <jmoyer@redhat.com>
Acked-by: NJoel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
上级 30b9c9e6
......@@ -593,9 +593,9 @@ static void ocfs2_dio_end_io(struct kiocb *iocb,
level = ocfs2_iocb_rw_locked_level(iocb);
ocfs2_rw_unlock(inode, level);
inode_dio_done(inode);
if (is_async)
aio_complete(iocb, ret, 0);
inode_dio_done(inode);
}
/*
......
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