Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Fri, 2 Jun 2017 14:07:43 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Daniel Micay <danielmicay@...il.com>
Cc: linux-mm@...ck.org, Kees Cook <keescook@...omium.org>,
 kernel-hardening@...ts.openwall.com, linux-kernel
 <linux-kernel@...r.kernel.org>, Mark Rutland <mark.rutland@....com>, Daniel
 Axtens <dja@...ens.net>, Moni Shoua <monis@...lanox.com>, Doug Ledford
 <dledford@...hat.com>, Sean Hefty <sean.hefty@...el.com>, Hal Rosenstock
 <hal.rosenstock@...il.com>, linux-rdma@...r.kernel.org
Subject: Re: [PATCH v4] add the option of fortified string.h functions

On Fri, 26 May 2017 05:54:04 -0400 Daniel Micay <danielmicay@...il.com> wrote:

> This adds support for compiling with a rough equivalent to the glibc
> _FORTIFY_SOURCE=1 feature, providing compile-time and runtime buffer
> overflow checks for string.h functions when the compiler determines the
> size of the source or destination buffer at compile-time. Unlike glibc,
> it covers buffer reads in addition to writes.

Did we find a bug in drivers/infiniband/sw/rxe/rxe_resp.c?

i386 allmodconfig:

In file included from ./include/linux/bitmap.h:8:0,
                 from ./include/linux/cpumask.h:11,
                 from ./include/linux/mm_types_task.h:13,
                 from ./include/linux/mm_types.h:4,
                 from ./include/linux/kmemcheck.h:4,
                 from ./include/linux/skbuff.h:18,
                 from drivers/infiniband/sw/rxe/rxe_resp.c:34:
In function 'memcpy',
    inlined from 'send_atomic_ack.constprop' at drivers/infiniband/sw/rxe/rxe_resp.c:998:2,
    inlined from 'acknowledge' at drivers/infiniband/sw/rxe/rxe_resp.c:1026:3,
    inlined from 'rxe_responder' at drivers/infiniband/sw/rxe/rxe_resp.c:1286:10:
./include/linux/string.h:309:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
    __read_overflow2();


If so, can you please interpret this for the infiniband developers?

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.