From fe685aabf7c8c9f138e5ea900954d295bf229175 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Thu, 12 Jul 2012 08:46:54 +0200 Subject: isofs: avoid info leak on export For type 1 the parent_offset member in struct isofs_fid gets copied uninitialized to userland. Fix this by initializing it to 0. Signed-off-by: Mathias Krause Signed-off-by: Jan Kara --- fs/isofs/export.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/isofs') diff --git a/fs/isofs/export.c b/fs/isofs/export.c index aa4356d09ee..1d3804492aa 100644 --- a/fs/isofs/export.c +++ b/fs/isofs/export.c @@ -134,6 +134,7 @@ isofs_export_encode_fh(struct inode *inode, len = 3; fh32[0] = ei->i_iget5_block; fh16[2] = (__u16)ei->i_iget5_offset; /* fh16 [sic] */ + fh16[3] = 0; /* avoid leaking uninitialized data */ fh32[2] = inode->i_generation; if (parent) { struct iso_inode_info *eparent; -- cgit v1.2.3