linux-kernel - [PATCH 12/13] fusectl: don't ignore options

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190619123019.30032-12-mszeredi@redhat.com>
Date:   Wed, 19 Jun 2019 14:30:18 +0200
From:   Miklos Szeredi <mszeredi@...hat.com>
To:     David Howells <dhowells@...hat.com>
Cc:     Al Viro <viro@...iv.linux.org.uk>, Ian Kent <raven@...maw.net>,
        linux-api@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 12/13] fusectl: don't ignore options

The options "sync", "async", "dirsync", "lazytime", "nolazytime", "mand"
and "nomand" make no sense for the fusectl filesystem.  If these options
are supplied to fsconfig(FSCONFIG_SET_FLAG), then return -EINVAL instead of
silently ignoring the option.

Any implementation, such as mount(8) that needs to parse this option
without failing should simply ignore the return value from fsconfig().

Signed-off-by: Miklos Szeredi <mszeredi@...hat.com>
---
 fs/fuse/control.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index c35013ed7f65..f3aab288929f 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -351,7 +351,7 @@ static int fuse_ctl_get_tree(struct fs_context *fc)
 
 static const struct fs_context_operations fuse_ctl_context_ops = {
 	.get_tree	= fuse_ctl_get_tree,
-	.parse_param	= vfs_parse_fs_param,
+	.parse_param	= vfs_parse_ro_rw,
 };
 
 static int fuse_ctl_init_fs_context(struct fs_context *fc)
-- 
2.21.0