tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 05ecb680708a1dbe6554d6fc17e5d9a8a7cb5e6a
commit: 925d046e7e52c71c3531199ce137e141807ef740 RDMA/core: Add a netevent notifier to cma
date: 8 months ago
config: mips-buildonly-randconfig-r006-20230207 (https://download.01.org/0day-ci/archive/20230208/[email protected]/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db0e6591612b53910a1b366863348bdb9d7d2fb1)
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
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=925d046e7e52c71c3531199ce137e141807ef740
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 925d046e7e52c71c3531199ce137e141807ef740
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/infiniband/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
All errors (new ones prefixed by >>):
In file included from drivers/infiniband/core/cma.c:9:
In file included from include/linux/completion.h:12:
In file included from include/linux/swait.h:7:
In file included from include/linux/spinlock.h:55:
In file included from include/linux/preempt.h:78:
In file included from ./arch/mips/include/generated/asm/preempt.h:1:
In file included from include/asm-generic/preempt.h:5:
In file included from include/linux/thread_info.h:60:
In file included from arch/mips/include/asm/thread_info.h:16:
In file included from arch/mips/include/asm/processor.h:15:
In file included from include/linux/cpumask.h:12:
In file included from include/linux/bitmap.h:11:
In file included from include/linux/string.h:253:
>> include/linux/fortify-string.h:414:4: error: call to '__read_overflow' declared with 'error' attribute: detected read beyond size of object (1st parameter)
__read_overflow();
^
1 error generated.
vim +414 include/linux/fortify-string.h
a28a6e860c6cf2 Francis Laniel 2021-02-25 405
92df138a8d663c Kees Cook 2022-02-08 406 __FORTIFY_INLINE __diagnose_as(__builtin_memcmp, 1, 2, 3)
281d0c962752fb Kees Cook 2022-02-08 407 int memcmp(const void * const POS0 p, const void * const POS0 q, __kernel_size_t size)
a28a6e860c6cf2 Francis Laniel 2021-02-25 408 {
a28a6e860c6cf2 Francis Laniel 2021-02-25 409 size_t p_size = __builtin_object_size(p, 0);
a28a6e860c6cf2 Francis Laniel 2021-02-25 410 size_t q_size = __builtin_object_size(q, 0);
a28a6e860c6cf2 Francis Laniel 2021-02-25 411
a28a6e860c6cf2 Francis Laniel 2021-02-25 412 if (__builtin_constant_p(size)) {
a28a6e860c6cf2 Francis Laniel 2021-02-25 413 if (p_size < size)
a28a6e860c6cf2 Francis Laniel 2021-02-25 @414 __read_overflow();
a28a6e860c6cf2 Francis Laniel 2021-02-25 415 if (q_size < size)
a28a6e860c6cf2 Francis Laniel 2021-02-25 416 __read_overflow2();
a28a6e860c6cf2 Francis Laniel 2021-02-25 417 }
a28a6e860c6cf2 Francis Laniel 2021-02-25 418 if (p_size < size || q_size < size)
a28a6e860c6cf2 Francis Laniel 2021-02-25 419 fortify_panic(__func__);
a28a6e860c6cf2 Francis Laniel 2021-02-25 420 return __underlying_memcmp(p, q, size);
a28a6e860c6cf2 Francis Laniel 2021-02-25 421 }
a28a6e860c6cf2 Francis Laniel 2021-02-25 422
:::::: The code at line 414 was first introduced by commit
:::::: a28a6e860c6cf231cf3c5171c75c342adcd00406 string.h: move fortified functions definitions in a dedicated header.
:::::: TO: Francis Laniel <[email protected]>
:::::: CC: Linus Torvalds <[email protected]>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
On Wed, Feb 08, 2023 at 02:59:05AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 05ecb680708a1dbe6554d6fc17e5d9a8a7cb5e6a
> commit: 925d046e7e52c71c3531199ce137e141807ef740 RDMA/core: Add a netevent notifier to cma
> date: 8 months ago
> config: mips-buildonly-randconfig-r006-20230207 (https://download.01.org/0day-ci/archive/20230208/[email protected]/config)
> compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db0e6591612b53910a1b366863348bdb9d7d2fb1)
> 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
> # install mips cross compiling tool for clang build
> # apt-get install binutils-mips-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=925d046e7e52c71c3531199ce137e141807ef740
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 925d046e7e52c71c3531199ce137e141807ef740
> # save the config file
> mkdir build_dir && cp config build_dir/.config
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/infiniband/
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <[email protected]>
>
> All errors (new ones prefixed by >>):
>
> In file included from drivers/infiniband/core/cma.c:9:
> In file included from include/linux/completion.h:12:
> In file included from include/linux/swait.h:7:
> In file included from include/linux/spinlock.h:55:
> In file included from include/linux/preempt.h:78:
> In file included from ./arch/mips/include/generated/asm/preempt.h:1:
> In file included from include/asm-generic/preempt.h:5:
> In file included from include/linux/thread_info.h:60:
> In file included from arch/mips/include/asm/thread_info.h:16:
> In file included from arch/mips/include/asm/processor.h:15:
> In file included from include/linux/cpumask.h:12:
> In file included from include/linux/bitmap.h:11:
> In file included from include/linux/string.h:253:
> >> include/linux/fortify-string.h:414:4: error: call to '__read_overflow' declared with 'error' attribute: detected read beyond size of object (1st parameter)
> __read_overflow();
> ^
> 1 error generated.
This is tentatively a bug in clang, although I do not see KASAN enabled:
https://github.com/ClangBuiltLinux/linux/issues/1687
I do see CONFIG_UBSAN_BOOL=y though, so this could be a generic
sanitizer problem.
Cheers,
Nathan
On Tue, Feb 07, 2023 at 12:02:10PM -0700, Nathan Chancellor wrote:
> On Wed, Feb 08, 2023 at 02:59:05AM +0800, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 05ecb680708a1dbe6554d6fc17e5d9a8a7cb5e6a
> > commit: 925d046e7e52c71c3531199ce137e141807ef740 RDMA/core: Add a netevent notifier to cma
> > date: 8 months ago
> > config: mips-buildonly-randconfig-r006-20230207 (https://download.01.org/0day-ci/archive/20230208/[email protected]/config)
> > compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db0e6591612b53910a1b366863348bdb9d7d2fb1)
> > 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
> > # install mips cross compiling tool for clang build
> > # apt-get install binutils-mips-linux-gnu
> > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=925d046e7e52c71c3531199ce137e141807ef740
> > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout 925d046e7e52c71c3531199ce137e141807ef740
> > # save the config file
> > mkdir build_dir && cp config build_dir/.config
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/infiniband/
> >
> > If you fix the issue, kindly add following tag where applicable
> > | Reported-by: kernel test robot <[email protected]>
> >
> > All errors (new ones prefixed by >>):
> >
> > In file included from drivers/infiniband/core/cma.c:9:
> > In file included from include/linux/completion.h:12:
> > In file included from include/linux/swait.h:7:
> > In file included from include/linux/spinlock.h:55:
> > In file included from include/linux/preempt.h:78:
> > In file included from ./arch/mips/include/generated/asm/preempt.h:1:
> > In file included from include/asm-generic/preempt.h:5:
> > In file included from include/linux/thread_info.h:60:
> > In file included from arch/mips/include/asm/thread_info.h:16:
> > In file included from arch/mips/include/asm/processor.h:15:
> > In file included from include/linux/cpumask.h:12:
> > In file included from include/linux/bitmap.h:11:
> > In file included from include/linux/string.h:253:
> > >> include/linux/fortify-string.h:414:4: error: call to '__read_overflow' declared with 'error' attribute: detected read beyond size of object (1st parameter)
> > __read_overflow();
> > ^
> > 1 error generated.
>
> This is tentatively a bug in clang, although I do not see KASAN enabled:
>
> https://github.com/ClangBuiltLinux/linux/issues/1687
>
> I do see CONFIG_UBSAN_BOOL=y though, so this could be a generic
> sanitizer problem.
>
> Cheers,
> Nathan
New rule added to the bot and will send similar reports to llvm list only.
Thanks,
Yujie