[3.5.y.z,extended,stable] Patch "isofs: avoid info leak on export" has been added to staging queue

Message ID 1363946833-7307-1-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques March 22, 2013, 10:07 a.m.
This is a note to let you know that I have just added a patch titled

    isofs: avoid info leak on export

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



From 35aacd262194710f4d0e446ccb71ca84e38a2928 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Thu, 12 Jul 2012 08:46:54 +0200
Subject: [PATCH] isofs: avoid info leak on export

commit fe685aabf7c8c9f138e5ea900954d295bf229175 upstream.

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 <minipli@googlemail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
 fs/isofs/export.c | 1 +
 1 file changed, 1 insertion(+)



diff --git a/fs/isofs/export.c b/fs/isofs/export.c
index 8cf3f97..2b4f235 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;