[PATCH 5.4 55/66] cifs: fix mount option display for sec=krb5i

From: Greg Kroah-Hartman
Date: Tue Feb 18 2020 - 15:00:26 EST


From: Petr Pavlu <petr.pavlu@xxxxxxxx>

commit 3f6166aaf19902f2f3124b5426405e292e8974dd upstream.

Fix display for sec=krb5i which was wrongly interleaved by cruid,
resulting in string "sec=krb5,cruid=<...>i" instead of
"sec=krb5i,cruid=<...>".

Fixes: 96281b9e46eb ("smb3: for kerberos mounts display the credential uid used")
Signed-off-by: Petr Pavlu <petr.pavlu@xxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
fs/cifs/cifsfs.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -414,7 +414,7 @@ cifs_show_security(struct seq_file *s, s
seq_puts(s, "ntlm");
break;
case Kerberos:
- seq_printf(s, "krb5,cruid=%u", from_kuid_munged(&init_user_ns,ses->cred_uid));
+ seq_puts(s, "krb5");
break;
case RawNTLMSSP:
seq_puts(s, "ntlmssp");
@@ -427,6 +427,10 @@ cifs_show_security(struct seq_file *s, s

if (ses->sign)
seq_puts(s, "i");
+
+ if (ses->sectype == Kerberos)
+ seq_printf(s, ",cruid=%u",
+ from_kuid_munged(&init_user_ns, ses->cred_uid));
}

static void