From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kees Cook Subject: Re: linux-next: build failure after merge of the akpm tree Date: Tue, 1 Aug 2017 11:40:33 -0700 Message-ID: References: <20170801162511.39fa58ad@canb.auug.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20170801162511.39fa58ad@canb.auug.org.au> Sender: linux-kernel-owner@vger.kernel.org To: Stephen Rothwell Cc: Andrew Morton , Linux-Next Mailing List , Linux Kernel Mailing List , Arnd Bergmann List-Id: linux-next.vger.kernel.org On Mon, Jul 31, 2017 at 11:25 PM, Stephen Rothwell wrote: > Hi Andrew, > > After merging the akpm tree, today's linux-next build (powerpc > allyesconfig) failed like this: > > In file included from arch/powerpc/include/asm/paca.h:19:0, > from arch/powerpc/include/asm/hw_irq.h:42, > from arch/powerpc/include/asm/irqflags.h:11, > from include/linux/irqflags.h:15, > from include/linux/spinlock.h:53, > from include/linux/wait.h:8, > from include/linux/wait_bit.h:7, > from include/linux/fs.h:5, > from include/linux/buffer_head.h:11, > from fs/adfs/dir_f.c:12: > In function 'memcpy', > inlined from '__adfs_dir_put' at fs/adfs/dir_f.c:318:2, > inlined from 'adfs_f_update' at fs/adfs/dir_f.c:403:2: > include/linux/string.h:305:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter > __read_overflow2(); > ^ > > I don't know why this has turned up now. I have just left it broken > for now and would appreciate any fix. Thanks for the heads-up! I'm not sure why this suddenly appeared either, but Arnd has sent a patch for this now. -Kees -- Kees Cook Pixel Security