Messages in this thread | | | Date | Tue, 7 Feb 2023 12:02:10 -0700 | From | Nathan Chancellor <> | Subject | Re: include/linux/fortify-string.h:414:4: error: call to '__read_overflow' declared with 'error' attribute: detected read beyond size of object (1st parameter) |
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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/20230208/202302080231.ZqOmpanX-lkp@intel.com/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 <lkp@intel.com> > > 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
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