tree 5cf2fc99c067eb49f410ad095ca2cabec2fe86ac
parent bfacf2225a955bea9c41c707fc72ba16009674a0
author Jeff Layton <jlayton@redhat.com> 1303925151 -0400
committer Steve French <sfrench@us.ibm.com> 1304053059 +0000

cifs: check for bytes_remaining going to zero in CIFS_SessSetup

It's possible that when we go to decode the string area in the
SESSION_SETUP response, that bytes_remaining will be 0. Decrementing it at
that point will mean that it can go "negative" and wrap. Check for a
bytes_remaining value of 0, and don't try to decode the string area if
that's the case.

Cc: stable@kernel.org
Reported-and-Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>