This is a note to let you know that I've just added the patch titled
fuse: readdir: check for slash in names
to the 3.4-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:
fuse-readdir-check-for-slash-in-names.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b5f9e3533584d2fb6c90c63da767b85421b07def Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@xxxxxxx>
Date: Tue, 3 Sep 2013 14:28:38 +0200
Subject: fuse: readdir: check for slash in names
From: Miklos Szeredi <mszeredi@xxxxxxx>
commit efeb9e60d48f7778fdcad4a0f3ad9ea9b19e5dfd upstream.
Userspace can add names containing a slash character to the directory
listing. Don't allow this as it could cause all sorts of trouble.
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
[bwh: Backported to 3.2: drop changes to parse_dirplusfile() which we
don't have]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Rui Xiang <rui.xiang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/fuse/dir.c | 2 ++
1 file changed, 2 insertions(+)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1103,6 +1103,8 @@ static int parse_dirfile(char *buf, size
return -EIO;
if (reclen > nbytes)
break;
+ if (memchr(dirent->name, '/', dirent->namelen) != NULL)
+ return -EIO;
over = filldir(dstbuf, dirent->name, dirent->namelen,
file->f_pos, dirent->ino, dirent->type);
Patches currently in stable-queue which might be from mszeredi@xxxxxxx are
queue-3.4/fuse-readdir-check-for-slash-in-names.patch
queue-3.4/fuse-hotfix-truncate_pagecache-issue.patch
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