tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 805c6d3c19210c90c109107d189744e960eae025 commit: c62da0c35d58518ddb26ff641d2485596567fd96 mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS date: 6 months ago config: microblaze-randconfig-r033-20200923 (attached as .config) compiler: microblaze-linux-gcc (GCC) 9.3.0 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 git checkout c62da0c35d58518ddb26ff641d2485596567fd96 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): security/selinux/hooks.c: In function 'selinux_ib_endport_manage_subnet': >> security/selinux/hooks.c:6620:2: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation] 6620 | strncpy(ibendport.dev_name, dev_name, sizeof(ibendport.dev_name)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c62da0c35d58518ddb26ff641d2485596567fd96 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout c62da0c35d58518ddb26ff641d2485596567fd96 vim +/strncpy +6620 security/selinux/hooks.c cfc4d882d41780 Daniel Jurgens 2017-05-19 6603 ab861dfca1652a Daniel Jurgens 2017-05-19 6604 static int selinux_ib_endport_manage_subnet(void *ib_sec, const char *dev_name, ab861dfca1652a Daniel Jurgens 2017-05-19 6605 u8 port_num) ab861dfca1652a Daniel Jurgens 2017-05-19 6606 { ab861dfca1652a Daniel Jurgens 2017-05-19 6607 struct common_audit_data ad; ab861dfca1652a Daniel Jurgens 2017-05-19 6608 int err; ab861dfca1652a Daniel Jurgens 2017-05-19 6609 u32 sid = 0; ab861dfca1652a Daniel Jurgens 2017-05-19 6610 struct ib_security_struct *sec = ib_sec; ab861dfca1652a Daniel Jurgens 2017-05-19 6611 struct lsm_ibendport_audit ibendport; ab861dfca1652a Daniel Jurgens 2017-05-19 6612 aa8e712cee93d5 Stephen Smalley 2018-03-01 6613 err = security_ib_endport_sid(&selinux_state, dev_name, port_num, aa8e712cee93d5 Stephen Smalley 2018-03-01 6614 &sid); ab861dfca1652a Daniel Jurgens 2017-05-19 6615 ab861dfca1652a Daniel Jurgens 2017-05-19 6616 if (err) ab861dfca1652a Daniel Jurgens 2017-05-19 6617 return err; 70a5bb72b55e82 David Howells 2008-04-29 6618 ab861dfca1652a Daniel Jurgens 2017-05-19 6619 ad.type = LSM_AUDIT_DATA_IBENDPORT; ab861dfca1652a Daniel Jurgens 2017-05-19 @6620 strncpy(ibendport.dev_name, dev_name, sizeof(ibendport.dev_name)); ab861dfca1652a Daniel Jurgens 2017-05-19 6621 ibendport.port = port_num; ab861dfca1652a Daniel Jurgens 2017-05-19 6622 ad.u.ibendport = &ibendport; 6b6bc6205d9879 Stephen Smalley 2018-03-05 6623 return avc_has_perm(&selinux_state, 6b6bc6205d9879 Stephen Smalley 2018-03-05 6624 sec->sid, sid, ab861dfca1652a Daniel Jurgens 2017-05-19 6625 SECCLASS_INFINIBAND_ENDPORT, ab861dfca1652a Daniel Jurgens 2017-05-19 6626 INFINIBAND_ENDPORT__MANAGE_SUBNET, &ad); ab861dfca1652a Daniel Jurgens 2017-05-19 6627 } ab861dfca1652a Daniel Jurgens 2017-05-19 6628 :::::: The code at line 6620 was first introduced by commit :::::: ab861dfca1652aa09b26b7aa2899feb29b33dfd9 selinux: Add IB Port SMP access vector :::::: TO: Daniel Jurgens <danielj@xxxxxxxxxxxx> :::::: CC: Paul Moore <paul@xxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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