* Re: [PATCH v2 3/3] fortify: Use SIZE_MAX instead of (size_t)-1
[not found] <20220902204351.2521805-4-keescook@chromium.org>
@ 2022-09-02 22:50 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-09-02 22:50 UTC (permalink / raw)
To: Kees Cook, Nick Desaulniers
Cc: kbuild-all, Kees Cook, linux-hardening, Nathan Chancellor,
Tom Rix, Andrew Morton, Linux Memory Management List,
Vlastimil Babka, Steven Rostedt (Google),
David Gow, Yury Norov, Masami Hiramatsu, Sander Vanheule,
Peter Zijlstra, Josh Poimboeuf, Dan Williams, Isabella Basso,
Eric Dumazet, Rasmus Villemoes, Eric Biggers, Hannes Reinecke,
linux-kernel, llvm
Hi Kees,
I love your patch! Yet something to improve:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master kees/for-next/pstore v6.0-rc3 next-20220901]
[cannot apply to kees/for-next/hardening]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Kees-Cook/Fix-FORTIFY-y-UBSAN_LOCAL_BOUNDS-y/20220903-044622
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20220903/202209030625.wdoOhjAW-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/6c991b3511a531e44e856fdf2b64020b70fd7b22
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Kees-Cook/Fix-FORTIFY-y-UBSAN_LOCAL_BOUNDS-y/20220903-044622
git checkout 6c991b3511a531e44e856fdf2b64020b70fd7b22
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc prepare
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
In file included from include/linux/string.h:253,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/linux/fortify-string.h: In function 'strcat':
>> include/linux/fortify-string.h:98:23: error: 'SIZE_MAX' undeclared (first use in this function)
98 | if (p_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h:6:1: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
5 | #include <linux/const.h>
+++ |+#include <stdint.h>
6 |
include/linux/fortify-string.h:98:23: note: each undeclared identifier is reported only once for each function it appears in
98 | if (p_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h: In function 'strnlen':
include/linux/fortify-string.h:20:24: error: 'SIZE_MAX' undeclared (first use in this function)
20 | size_t __ret = SIZE_MAX; \
| ^~~~~~~~
include/linux/fortify-string.h:109:24: note: in expansion of macro '__compiletime_strlen'
109 | size_t p_len = __compiletime_strlen(p);
| ^~~~~~~~~~~~~~~~~~~~
include/linux/fortify-string.h:20:24: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
20 | size_t __ret = SIZE_MAX; \
| ^~~~~~~~
include/linux/fortify-string.h:109:24: note: in expansion of macro '__compiletime_strlen'
109 | size_t p_len = __compiletime_strlen(p);
| ^~~~~~~~~~~~~~~~~~~~
include/linux/fortify-string.h: In function '__fortify_strlen':
include/linux/fortify-string.h:141:23: error: 'SIZE_MAX' undeclared (first use in this function)
141 | if (p_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h:141:23: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
include/linux/fortify-string.h: In function 'strlcpy':
include/linux/fortify-string.h:158:23: error: 'SIZE_MAX' undeclared (first use in this function)
158 | if (p_size == SIZE_MAX && q_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h:158:23: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
include/linux/fortify-string.h: In function 'strscpy':
include/linux/fortify-string.h:186:23: error: 'SIZE_MAX' undeclared (first use in this function)
186 | if (p_size == SIZE_MAX && q_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h:186:23: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
include/linux/fortify-string.h: In function 'strncat':
include/linux/fortify-string.h:231:23: error: 'SIZE_MAX' undeclared (first use in this function)
231 | if (p_size == SIZE_MAX && q_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h:231:23: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
include/linux/fortify-string.h: In function 'fortify_memset_chk':
include/linux/fortify-string.h:275:23: error: 'SIZE_MAX' undeclared (first use in this function)
275 | if (p_size != SIZE_MAX && p_size < size)
| ^~~~~~~~
include/linux/fortify-string.h:275:23: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
include/linux/fortify-string.h: In function 'fortify_memcpy_chk':
include/linux/fortify-string.h:369:24: error: 'SIZE_MAX' undeclared (first use in this function)
369 | if ((p_size != SIZE_MAX && p_size < size) ||
| ^~~~~~~~
include/linux/fortify-string.h:369:24: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
include/linux/fortify-string.h: In function 'strcpy':
include/linux/fortify-string.h:469:23: error: 'SIZE_MAX' undeclared (first use in this function)
469 | if (p_size == SIZE_MAX && q_size == SIZE_MAX)
| ^~~~~~~~
include/linux/fortify-string.h:469:23: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'?
make[2]: *** [scripts/Makefile.build:117: scripts/mod/devicetable-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1204: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:222: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/SIZE_MAX +98 include/linux/fortify-string.h
92
93 __FORTIFY_INLINE __diagnose_as(__builtin_strcat, 1, 2)
94 char *strcat(char * const POS p, const char *q)
95 {
96 size_t p_size = __builtin_object_size(p, 1);
97
> 98 if (p_size == SIZE_MAX)
99 return __underlying_strcat(p, q);
100 if (strlcat(p, q, p_size) >= p_size)
101 fortify_panic(__func__);
102 return p;
103 }
104
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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