tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y head: e72abf1f11a982a2a3fb555b5a9bd2eb2011dee8 commit: 6b47a3043a24a25e9bf4c9e8a65be2803ecd1ca9 [1/3868] Bluetooth: Fix invalid-free in bcsp_close() config: ia64-randconfig-r024-20210617 (attached as .config) compiler: ia64-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 # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.4.y git checkout 6b47a3043a24a25e9bf4c9e8a65be2803ecd1ca9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/nvme/target/discovery.c: In function 'nvmet_execute_identify_disc_ctrl': 243 | strncpy((char *)id->fr, UTS_RELEASE, sizeof(id->fr)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/strncpy +243 drivers/nvme/target/discovery.c a07b4970f464f1 Christoph Hellwig 2016-06-21 229 a07b4970f464f1 Christoph Hellwig 2016-06-21 230 static void nvmet_execute_identify_disc_ctrl(struct nvmet_req *req) a07b4970f464f1 Christoph Hellwig 2016-06-21 231 { a07b4970f464f1 Christoph Hellwig 2016-06-21 232 struct nvmet_ctrl *ctrl = req->sq->ctrl; a07b4970f464f1 Christoph Hellwig 2016-06-21 233 struct nvme_id_ctrl *id; a07b4970f464f1 Christoph Hellwig 2016-06-21 234 u16 status = 0; a07b4970f464f1 Christoph Hellwig 2016-06-21 235 a07b4970f464f1 Christoph Hellwig 2016-06-21 236 id = kzalloc(sizeof(*id), GFP_KERNEL); a07b4970f464f1 Christoph Hellwig 2016-06-21 237 if (!id) { a07b4970f464f1 Christoph Hellwig 2016-06-21 238 status = NVME_SC_INTERNAL; a07b4970f464f1 Christoph Hellwig 2016-06-21 239 goto out; a07b4970f464f1 Christoph Hellwig 2016-06-21 240 } a07b4970f464f1 Christoph Hellwig 2016-06-21 241 a07b4970f464f1 Christoph Hellwig 2016-06-21 242 memset(id->fr, ' ', sizeof(id->fr)); a07b4970f464f1 Christoph Hellwig 2016-06-21 @243 strncpy((char *)id->fr, UTS_RELEASE, sizeof(id->fr)); a07b4970f464f1 Christoph Hellwig 2016-06-21 244 a07b4970f464f1 Christoph Hellwig 2016-06-21 245 /* no limit on data transfer sizes for now */ a07b4970f464f1 Christoph Hellwig 2016-06-21 246 id->mdts = 0; a07b4970f464f1 Christoph Hellwig 2016-06-21 247 id->cntlid = cpu_to_le16(ctrl->cntlid); a07b4970f464f1 Christoph Hellwig 2016-06-21 248 id->ver = cpu_to_le32(ctrl->subsys->ver); a07b4970f464f1 Christoph Hellwig 2016-06-21 249 id->lpa = (1 << 2); a07b4970f464f1 Christoph Hellwig 2016-06-21 250 a07b4970f464f1 Christoph Hellwig 2016-06-21 251 /* no enforcement soft-limit for maxcmd - pick arbitrary high value */ a07b4970f464f1 Christoph Hellwig 2016-06-21 252 id->maxcmd = cpu_to_le16(NVMET_MAX_CMD); a07b4970f464f1 Christoph Hellwig 2016-06-21 253 a07b4970f464f1 Christoph Hellwig 2016-06-21 254 id->sgls = cpu_to_le32(1 << 0); /* we always support SGLs */ a07b4970f464f1 Christoph Hellwig 2016-06-21 255 if (ctrl->ops->has_keyed_sgls) a07b4970f464f1 Christoph Hellwig 2016-06-21 256 id->sgls |= cpu_to_le32(1 << 2); 0d5ee2b2ab4f67 Steve Wise 2018-06-20 257 if (req->port->inline_data_size) a07b4970f464f1 Christoph Hellwig 2016-06-21 258 id->sgls |= cpu_to_le32(1 << 20); a07b4970f464f1 Christoph Hellwig 2016-06-21 259 b662a078576e7d Jay Sternberg 2018-11-12 260 id->oaes = cpu_to_le32(NVMET_DISC_AEN_CFG_OPTIONAL); b662a078576e7d Jay Sternberg 2018-11-12 261 5eadc9cce17100 Bart Van Assche 2018-10-08 262 strlcpy(id->subnqn, ctrl->subsys->subsysnqn, sizeof(id->subnqn)); a07b4970f464f1 Christoph Hellwig 2016-06-21 263 a07b4970f464f1 Christoph Hellwig 2016-06-21 264 status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id)); a07b4970f464f1 Christoph Hellwig 2016-06-21 265 a07b4970f464f1 Christoph Hellwig 2016-06-21 266 kfree(id); a07b4970f464f1 Christoph Hellwig 2016-06-21 267 out: a07b4970f464f1 Christoph Hellwig 2016-06-21 268 nvmet_req_complete(req, status); a07b4970f464f1 Christoph Hellwig 2016-06-21 269 } a07b4970f464f1 Christoph Hellwig 2016-06-21 270 :::::: The code at line 243 was first introduced by commit :::::: a07b4970f464f13640e28e16dad6cfa33647cc99 nvmet: add a generic NVMe target :::::: TO: Christoph Hellwig <hch(a)lst.de&gt; :::::: CC: Jens Axboe <axboe(a)fb.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org