lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 1 Jul 2022 19:33:24 -0700 From: Yury Norov <yury.norov@...il.com> To: Alexander Lobakin <alexandr.lobakin@...el.com> Cc: yury.norov@...il.com, linux-kernel@...r.kernel.org Subject: [lkp@...el.com: [norov:fns 9/23] include/asm-generic/percpu.h:21:44: warning: array subscript 4 is above array bounds of 'long unsigned int[4]'] Hi Alexander, I'm working on top of your recent cons bitmap series, and again received a bug report from LKP regarding one of you patches. Can you please look at this report? I tried reproduce it myself, but the build is failed for me: arch/arc/kernel/entry.S: Assembler messages: arch/arc/kernel/entry.S:280: Error: operand out of range (260 is not between -256 and 255) make[2]: *** [scripts/Makefile.build:322: arch/arc/kernel/entry-compact.o] Error 1 make[2]: *** Waiting for unfinished jobs.... If you think it's mis-attributed, we should let LKP people know that something is wrong on their side. Thanks, Yury ----- Forwarded message from kernel test robot <lkp@...el.com> ----- Date: Sat, 2 Jul 2022 08:42:59 +0800 From: kernel test robot <lkp@...el.com> To: Yury Norov <yury.norov@...il.com> Cc: kbuild-all@...ts.01.org Subject: [norov:fns 9/23] include/asm-generic/percpu.h:21:44: warning: array subscript 4 is above array bounds of 'long unsigned int[4]' tree: https://github.com/norov/linux fns head: 1df9509fd92a58cb37e9a419235823bbb13367de commit: 3e7e5baaaba78075a7f3a57432609e363bf2a486 [9/23] bitmap: don't assume compiler evaluates small mem*() builtins calls config: arc-randconfig-r035-20220629 (https://download.01.org/0day-ci/archive/20220702/202207020812.oTFxIVue-lkp@intel.com/config) compiler: arc-elf-gcc (GCC) 11.3.0 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/norov/linux/commit/3e7e5baaaba78075a7f3a57432609e363bf2a486 git remote add norov https://github.com/norov/linux git fetch --no-tags norov fns git checkout 3e7e5baaaba78075a7f3a57432609e363bf2a486 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash kernel/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@...el.com> All warnings (new ones prefixed by >>): In file included from include/linux/compiler_types.h:93, from <command-line>: kernel/sched/topology.c: In function 'build_sched_domains': >> include/asm-generic/percpu.h:21:44: warning: array subscript 4 is above array bounds of 'long unsigned int[4]' [-Warray-bounds] 21 | #define per_cpu_offset(x) (__per_cpu_offset[x]) include/linux/compiler-gcc.h:35:33: note: in definition of macro 'RELOC_HIDE' 35 | (typeof(ptr)) (__ptr + (off)); \ | ^~~ include/linux/percpu-defs.h:236:9: note: in expansion of macro 'SHIFT_PERCPU_PTR' 236 | SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))); \ | ^~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:236:33: note: in expansion of macro 'per_cpu_offset' 236 | SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))); \ | ^~~~~~~~~~~~~~ kernel/sched/topology.c:969:20: note: in expansion of macro 'per_cpu_ptr' 969 | sg->sgc = *per_cpu_ptr(sdd->sgc, cpu); | ^~~~~~~~~~~ In file included from ./arch/arc/include/generated/asm/percpu.h:1, from include/linux/irqflags.h:17, from include/linux/rcupdate.h:26, from include/linux/rculist.h:11, from include/linux/sched/signal.h:5, from include/linux/sched/cputime.h:5, from kernel/sched/build_utility.c:13: include/asm-generic/percpu.h:19:22: note: while referencing '__per_cpu_offset' 19 | extern unsigned long __per_cpu_offset[NR_CPUS]; | ^~~~~~~~~~~~~~~~ vim +21 include/asm-generic/percpu.h ^1da177e4c3f415 Linus Torvalds 2005-04-16 20 a875a69f8b00a38 Ingo Molnar 2006-07-03 @21 #define per_cpu_offset(x) (__per_cpu_offset[x]) acdac87202a4081 travis@....com 2008-01-30 22 #endif acdac87202a4081 travis@....com 2008-01-30 23 :::::: The code at line 21 was first introduced by commit :::::: a875a69f8b00a38b4f40d9632a4fc71a159f0e0d [PATCH] lockdep: add per_cpu_offset() :::::: TO: Ingo Molnar <mingo@...e.hu> :::::: CC: Linus Torvalds <torvalds@...osdl.org> -- 0-DAY CI Kernel Test Service https://01.org/lkp ----- End forwarded message -----
Powered by blists - more mailing lists