From 5a5e9cb61129f19ba28e124a925d8d27d75ea6ed Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Thu, 13 Sep 2012 17:48:57 +0100 Subject: [PATCH] cifs: Mangle string used for unc in /proc/mounts The string for "unc=" in /proc/mounts needs to be escaped. The current behaviour can create problems in cases when mounting a share starting with a number. example: >mount -t cifs -o username=test,password=x vm140-31:/17000-test /mnt >mount -o remount,password=x /mnt mount error: could not resolve address for vm140-31x00-test: Unknown error The sub-string "\170" which is part of the unc for the mount above in /proc/mounts is interpreted as character'x' in the case above. Escaping the string fixes the problem. Signed-off-by: Sachin Prabhu Reviewed-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 28ac048d54ea..a41044a31083 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -350,7 +350,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root) cifs_show_security(s, tcon->ses->server); cifs_show_cache_flavor(s, cifs_sb); - seq_printf(s, ",unc=%s", tcon->treeName); + seq_printf(s, ",unc="); + seq_escape(s, tcon->treeName, " \t\n\\"); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER) seq_printf(s, ",multiuser"); -- 2.39.5