Patch "ext4: fix an endianness bug in ext4_encrypted_follow_link()" has been added to the 4.3-stable tree

Patch "ext4: fix an endianness bug in ext4_encrypted_follow_link()" has been added to the 4.3-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ext4: fix an endianness bug in ext4_encrypted_follow_link()

to the 4.3-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ext4-fix-an-endianness-bug-in-ext4_encrypted_follow_link.patch
and it can be found in the queue-4.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 5a1c7f47da9b32d0671e776b0f388095b7f91e2e Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Thu, 26 Nov 2015 15:20:50 -0500
Subject: ext4: fix an endianness bug in ext4_encrypted_follow_link()

From: Al Viro <viro@ZenIV.linux.org.uk>

commit 5a1c7f47da9b32d0671e776b0f388095b7f91e2e upstream.

applying le32_to_cpu() to 16bit value is a bad idea...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ext4/symlink.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -52,7 +52,7 @@ static const char *ext4_encrypted_follow
 	/* Symlink is encrypted */
 	sd = (struct ext4_encrypted_symlink_data *)caddr;
 	cstr.name = sd->encrypted_path;
-	cstr.len  = le32_to_cpu(sd->len);
+	cstr.len  = le16_to_cpu(sd->len);
 	if ((cstr.len +
 	     sizeof(struct ext4_encrypted_symlink_data) - 1) >
 	    max_size) {


Patches currently in stable-queue which might be from viro@ZenIV.linux.org.uk are

queue-4.3/ext4-fix-an-endianness-bug-in-ext4_encrypted_follow_link.patch
queue-4.3/ext4-fix-an-endianness-bug-in-ext4_encrypted_zeroout.patch