From: Jakub Kicinski
Date: Thu, 22 Jun 2017 18:57:55 -0700
> KASAN reports out-of-bound access in proc_dostring() coming from
> proc_tcp_available_ulp() because in case TCP ULP list is empty
> the buffer allocated for the response will not have anything
> printed into it. Set the first byte to z
KASAN reports out-of-bound access in proc_dostring() coming from
proc_tcp_available_ulp() because in case TCP ULP list is empty
the buffer allocated for the response will not have anything
printed into it. Set the first byte to zero to avoid strlen()
going out-of-bounds.
Fixes: 734942cc4ea6 ("tcp