From: Maciek Borzecki maciek.borzecki@gmail.com
commit 0fc9322ab5e1fe6910c9673e1a7ff29f7dd72611 upstream.
Commit 653a5efb849a ("cifs: update super_operations to show_devname") introduced the display of devname for cifs mounts. However, when mounting a share which has a whitespace in the name, that exact share name is also displayed in mountinfo. Make sure that all whitespace is escaped.
Signed-off-by: Maciek Borzecki maciek.borzecki@gmail.com CC: stable@vger.kernel.org # 5.11+ Reviewed-by: Shyam Prasad N sprasad@microsoft.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/cifsfs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -475,7 +475,8 @@ static int cifs_show_devname(struct seq_ seq_puts(m, "none"); else { convert_delimiter(devname, '/'); - seq_puts(m, devname); + /* escape all spaces in share names */ + seq_escape(m, devname, " \t"); kfree(devname); } return 0;