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From: kbuild test robot <lkp@intel.com>
To: Eddie Kovsky <ewk@edkovsky.org>
Cc: kbuild-all@01.org, jeyu@redhat.com, rusty@rustcorp.com.au,
	keescook@chromium.org, linux-kernel@vger.kernel.org,
	kernel-hardening@lists.openwall.com
Subject: Re: [PATCH v5 2/2] extable: verify address is read-only
Date: Fri, 7 Apr 2017 01:41:26 +0800	[thread overview]
Message-ID: <201704070155.EM9TWkdW%fengguang.wu@intel.com> (raw)
In-Reply-To: <20170406033550.32525-3-ewk@edkovsky.org>

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Hi Eddie,

[auto build test ERROR on next-20170330]
[cannot apply to linus/master linux/master jeyu/modules-next v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.11-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Eddie-Kovsky/module-verify-address-is-read-only/20170407-004322
config: i386-randconfig-x010-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   kernel/extable.c: In function 'core_kernel_rodata':
>> kernel/extable.c:169:29: error: '__start_ro_after_init' undeclared (first use in this function)
     if (addr >= (unsigned long)__start_ro_after_init &&
                                ^~~~~~~~~~~~~~~~~~~~~
   kernel/extable.c:169:29: note: each undeclared identifier is reported only once for each function it appears in
>> kernel/extable.c:170:28: error: '__end_ro_after_init' undeclared (first use in this function)
         addr < (unsigned long)__end_ro_after_init)
                               ^~~~~~~~~~~~~~~~~~~

vim +/__start_ro_after_init +169 kernel/extable.c

   163	int core_kernel_rodata(unsigned long addr)
   164	{
   165		if (addr >= (unsigned long)__start_rodata &&
   166		    addr < (unsigned long)__end_rodata)
   167			return 1;
   168	
 > 169		if (addr >= (unsigned long)__start_ro_after_init &&
 > 170		    addr < (unsigned long)__end_ro_after_init)
   171			return 1;
   172	
   173		return 0;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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WARNING: multiple messages have this Message-ID (diff)
From: kbuild test robot <lkp@intel.com>
To: Eddie Kovsky <ewk@edkovsky.org>
Cc: kbuild-all@01.org, jeyu@redhat.com, rusty@rustcorp.com.au,
	keescook@chromium.org, linux-kernel@vger.kernel.org,
	kernel-hardening@lists.openwall.com
Subject: [kernel-hardening] Re: [PATCH v5 2/2] extable: verify address is read-only
Date: Fri, 7 Apr 2017 01:41:26 +0800	[thread overview]
Message-ID: <201704070155.EM9TWkdW%fengguang.wu@intel.com> (raw)
In-Reply-To: <20170406033550.32525-3-ewk@edkovsky.org>

[-- Attachment #1: Type: text/plain, Size: 1741 bytes --]

Hi Eddie,

[auto build test ERROR on next-20170330]
[cannot apply to linus/master linux/master jeyu/modules-next v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.11-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Eddie-Kovsky/module-verify-address-is-read-only/20170407-004322
config: i386-randconfig-x010-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   kernel/extable.c: In function 'core_kernel_rodata':
>> kernel/extable.c:169:29: error: '__start_ro_after_init' undeclared (first use in this function)
     if (addr >= (unsigned long)__start_ro_after_init &&
                                ^~~~~~~~~~~~~~~~~~~~~
   kernel/extable.c:169:29: note: each undeclared identifier is reported only once for each function it appears in
>> kernel/extable.c:170:28: error: '__end_ro_after_init' undeclared (first use in this function)
         addr < (unsigned long)__end_ro_after_init)
                               ^~~~~~~~~~~~~~~~~~~

vim +/__start_ro_after_init +169 kernel/extable.c

   163	int core_kernel_rodata(unsigned long addr)
   164	{
   165		if (addr >= (unsigned long)__start_rodata &&
   166		    addr < (unsigned long)__end_rodata)
   167			return 1;
   168	
 > 169		if (addr >= (unsigned long)__start_ro_after_init &&
 > 170		    addr < (unsigned long)__end_ro_after_init)
   171			return 1;
   172	
   173		return 0;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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  parent reply	other threads:[~2017-04-06 17:42 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-06  3:35 [PATCH v5 0/2] provide check for ro_after_init memory sections Eddie Kovsky
2017-04-06  3:35 ` [kernel-hardening] " Eddie Kovsky
2017-04-06  3:35 ` [PATCH v5 1/2] module: verify address is read-only Eddie Kovsky
2017-04-06  3:35   ` [kernel-hardening] " Eddie Kovsky
2017-04-07  1:58   ` Jessica Yu
2017-04-07  1:58     ` [kernel-hardening] " Jessica Yu
2017-04-07 20:46     ` Kees Cook
2017-04-07 20:46       ` [kernel-hardening] " Kees Cook
2017-04-06  3:35 ` [PATCH v5 2/2] extable: " Eddie Kovsky
2017-04-06  3:35   ` [kernel-hardening] " Eddie Kovsky
2017-04-06 17:20   ` kbuild test robot
2017-04-06 17:20     ` [kernel-hardening] " kbuild test robot
2017-04-06 17:41   ` kbuild test robot [this message]
2017-04-06 17:41     ` kbuild test robot
2017-04-07 19:29     ` Eddie Kovsky
2017-04-07 19:29       ` [kernel-hardening] " Eddie Kovsky
2017-04-07 20:45       ` Kees Cook
2017-04-07 20:45         ` [kernel-hardening] " Kees Cook
2017-04-07 21:53 ` [PATCH v5 0/2] provide check for ro_after_init memory sections Kees Cook
2017-04-07 21:53   ` [kernel-hardening] " Kees Cook
2017-04-07 22:12   ` Andrew Morton
2017-04-07 22:12     ` [kernel-hardening] " Andrew Morton
2017-04-07 22:15     ` Kees Cook
2017-04-07 22:15       ` [kernel-hardening] " Kees Cook
2017-04-07 22:23       ` Andrew Morton
2017-04-07 22:23         ` [kernel-hardening] " Andrew Morton
2017-04-07 22:47         ` Kees Cook
2017-04-07 22:47           ` [kernel-hardening] " Kees Cook

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