tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y head: e1f7d50ae3a3ec342e87a9b1ce6787bfb8b3c08b commit: 760f8522ce08a24abac3208290f93fe3fffc0d6c [6067/9999] selinux: use kernel linux/socket.h for genheaders and mdp config: x86_64-allyesconfig (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): # 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-4.14.y git checkout 760f8522ce08a24abac3208290f93fe3fffc0d6c # save the attached .config to linux build tree make W=1 ARCH=x86_64

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/crypto/qat/qat_common/qat_algs.c: In function 'qat_alg_do_precomputes': >> drivers/crypto/qat/qat_common/qat_algs.c:156:7: warning: argument 1 range [18446744071562067968, 18446744073709551615] exceeds maximum object size 9223372036854775807 [-Walloc-size-larger-than=] char ipad[block_size]; ^~~~ drivers/crypto/qat/qat_common/qat_algs.c:156:7: note: in a call to built-in allocation function '__builtin_alloca_with_align' -- drivers/watchdog/eurotechwdt.c: In function 'eurwdt_ioctl': >> drivers/watchdog/eurotechwdt.c:292:3: warning: this statement may fall through [-Wimplicit-fallthrough=] spin_unlock(&eurwdt_lock); ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/watchdog/eurotechwdt.c:295:2: note: here case WDIOC_GETTIMEOUT: ^~~~ arch/x86/include/asm/bitops.h: Assembler messages: arch/x86/include/asm/bitops.h:225: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts' vim +156 drivers/crypto/qat/qat_common/qat_algs.c d370cec3219490 Tadeusz Struk 2014-06-05 144 d370cec3219490 Tadeusz Struk 2014-06-05 145 static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, 338e84f3a9740a Tadeusz Struk 2014-12-08 146 struct qat_alg_aead_ctx *ctx, d370cec3219490 Tadeusz Struk 2014-06-05 147 const uint8_t *auth_key, 26c3af6c1580a0 Tadeusz Struk 2014-09-10 148 unsigned int auth_keylen) d370cec3219490 Tadeusz Struk 2014-06-05 149 { 37e5265437a02e Behan Webster 2014-04-04 150 SHASH_DESC_ON_STACK(shash, ctx->hash_tfm); d370cec3219490 Tadeusz Struk 2014-06-05 151 struct sha1_state sha1; d370cec3219490 Tadeusz Struk 2014-06-05 152 struct sha256_state sha256; d370cec3219490 Tadeusz Struk 2014-06-05 153 struct sha512_state sha512; d370cec3219490 Tadeusz Struk 2014-06-05 154 int block_size = crypto_shash_blocksize(ctx->hash_tfm); d370cec3219490 Tadeusz Struk 2014-06-05 155 int digest_size = crypto_shash_digestsize(ctx->hash_tfm); 48eb3691e8beab Herbert Xu 2015-01-14 @156 char ipad[block_size]; 48eb3691e8beab Herbert Xu 2015-01-14 157 char opad[block_size]; d370cec3219490 Tadeusz Struk 2014-06-05 158 __be32 *hash_state_out; d370cec3219490 Tadeusz Struk 2014-06-05 159 __be64 *hash512_state_out; d370cec3219490 Tadeusz Struk 2014-06-05 160 int i, offset; d370cec3219490 Tadeusz Struk 2014-06-05 161 48eb3691e8beab Herbert Xu 2015-01-14 162 memset(ipad, 0, block_size); 48eb3691e8beab Herbert Xu 2015-01-14 163 memset(opad, 0, block_size); 37e5265437a02e Behan Webster 2014-04-04 164 shash->tfm = ctx->hash_tfm; 37e5265437a02e Behan Webster 2014-04-04 165 shash->flags = 0x0; d370cec3219490 Tadeusz Struk 2014-06-05 166 d370cec3219490 Tadeusz Struk 2014-06-05 167 if (auth_keylen > block_size) { 37e5265437a02e Behan Webster 2014-04-04 168 int ret = crypto_shash_digest(shash, auth_key, 48eb3691e8beab Herbert Xu 2015-01-14 169 auth_keylen, ipad); d370cec3219490 Tadeusz Struk 2014-06-05 170 if (ret) d370cec3219490 Tadeusz Struk 2014-06-05 171 return ret; d370cec3219490 Tadeusz Struk 2014-06-05 172 48eb3691e8beab Herbert Xu 2015-01-14 173 memcpy(opad, ipad, digest_size); d370cec3219490 Tadeusz Struk 2014-06-05 174 } else { d370cec3219490 Tadeusz Struk 2014-06-05 175 memcpy(ipad, auth_key, auth_keylen); d370cec3219490 Tadeusz Struk 2014-06-05 176 memcpy(opad, auth_key, auth_keylen); d370cec3219490 Tadeusz Struk 2014-06-05 177 } d370cec3219490 Tadeusz Struk 2014-06-05 178 d370cec3219490 Tadeusz Struk 2014-06-05 179 for (i = 0; i < block_size; i++) { d370cec3219490 Tadeusz Struk 2014-06-05 180 char *ipad_ptr = ipad + i; d370cec3219490 Tadeusz Struk 2014-06-05 181 char *opad_ptr = opad + i; f14011ad7cf79a Corentin LABBE 2017-05-19 182 *ipad_ptr ^= HMAC_IPAD_VALUE; f14011ad7cf79a Corentin LABBE 2017-05-19 183 *opad_ptr ^= HMAC_OPAD_VALUE; d370cec3219490 Tadeusz Struk 2014-06-05 184 } d370cec3219490 Tadeusz Struk 2014-06-05 185 37e5265437a02e Behan Webster 2014-04-04 186 if (crypto_shash_init(shash)) d370cec3219490 Tadeusz Struk 2014-06-05 187 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 188 37e5265437a02e Behan Webster 2014-04-04 189 if (crypto_shash_update(shash, ipad, block_size)) d370cec3219490 Tadeusz Struk 2014-06-05 190 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 191 d370cec3219490 Tadeusz Struk 2014-06-05 192 hash_state_out = (__be32 *)hash->sha.state1; d370cec3219490 Tadeusz Struk 2014-06-05 193 hash512_state_out = (__be64 *)hash_state_out; d370cec3219490 Tadeusz Struk 2014-06-05 194 d370cec3219490 Tadeusz Struk 2014-06-05 195 switch (ctx->qat_hash_alg) { d370cec3219490 Tadeusz Struk 2014-06-05 196 case ICP_QAT_HW_AUTH_ALGO_SHA1: 37e5265437a02e Behan Webster 2014-04-04 197 if (crypto_shash_export(shash, &sha1)) d370cec3219490 Tadeusz Struk 2014-06-05 198 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 199 for (i = 0; i < digest_size >> 2; i++, hash_state_out++) d370cec3219490 Tadeusz Struk 2014-06-05 200 *hash_state_out = cpu_to_be32(*(sha1.state + i)); d370cec3219490 Tadeusz Struk 2014-06-05 201 break; d370cec3219490 Tadeusz Struk 2014-06-05 202 case ICP_QAT_HW_AUTH_ALGO_SHA256: 37e5265437a02e Behan Webster 2014-04-04 203 if (crypto_shash_export(shash, &sha256)) d370cec3219490 Tadeusz Struk 2014-06-05 204 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 205 for (i = 0; i < digest_size >> 2; i++, hash_state_out++) d370cec3219490 Tadeusz Struk 2014-06-05 206 *hash_state_out = cpu_to_be32(*(sha256.state + i)); d370cec3219490 Tadeusz Struk 2014-06-05 207 break; d370cec3219490 Tadeusz Struk 2014-06-05 208 case ICP_QAT_HW_AUTH_ALGO_SHA512: 37e5265437a02e Behan Webster 2014-04-04 209 if (crypto_shash_export(shash, &sha512)) d370cec3219490 Tadeusz Struk 2014-06-05 210 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 211 for (i = 0; i < digest_size >> 3; i++, hash512_state_out++) d370cec3219490 Tadeusz Struk 2014-06-05 212 *hash512_state_out = cpu_to_be64(*(sha512.state + i)); d370cec3219490 Tadeusz Struk 2014-06-05 213 break; d370cec3219490 Tadeusz Struk 2014-06-05 214 default: d370cec3219490 Tadeusz Struk 2014-06-05 215 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 216 } d370cec3219490 Tadeusz Struk 2014-06-05 217 37e5265437a02e Behan Webster 2014-04-04 218 if (crypto_shash_init(shash)) d370cec3219490 Tadeusz Struk 2014-06-05 219 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 220 37e5265437a02e Behan Webster 2014-04-04 221 if (crypto_shash_update(shash, opad, block_size)) d370cec3219490 Tadeusz Struk 2014-06-05 222 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 223 d370cec3219490 Tadeusz Struk 2014-06-05 224 offset = round_up(qat_get_inter_state_size(ctx->qat_hash_alg), 8); d370cec3219490 Tadeusz Struk 2014-06-05 225 hash_state_out = (__be32 *)(hash->sha.state1 + offset); d370cec3219490 Tadeusz Struk 2014-06-05 226 hash512_state_out = (__be64 *)hash_state_out; d370cec3219490 Tadeusz Struk 2014-06-05 227 d370cec3219490 Tadeusz Struk 2014-06-05 228 switch (ctx->qat_hash_alg) { d370cec3219490 Tadeusz Struk 2014-06-05 229 case ICP_QAT_HW_AUTH_ALGO_SHA1: 37e5265437a02e Behan Webster 2014-04-04 230 if (crypto_shash_export(shash, &sha1)) d370cec3219490 Tadeusz Struk 2014-06-05 231 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 232 for (i = 0; i < digest_size >> 2; i++, hash_state_out++) d370cec3219490 Tadeusz Struk 2014-06-05 233 *hash_state_out = cpu_to_be32(*(sha1.state + i)); d370cec3219490 Tadeusz Struk 2014-06-05 234 break; d370cec3219490 Tadeusz Struk 2014-06-05 235 case ICP_QAT_HW_AUTH_ALGO_SHA256: 37e5265437a02e Behan Webster 2014-04-04 236 if (crypto_shash_export(shash, &sha256)) d370cec3219490 Tadeusz Struk 2014-06-05 237 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 238 for (i = 0; i < digest_size >> 2; i++, hash_state_out++) d370cec3219490 Tadeusz Struk 2014-06-05 239 *hash_state_out = cpu_to_be32(*(sha256.state + i)); d370cec3219490 Tadeusz Struk 2014-06-05 240 break; d370cec3219490 Tadeusz Struk 2014-06-05 241 case ICP_QAT_HW_AUTH_ALGO_SHA512: 37e5265437a02e Behan Webster 2014-04-04 242 if (crypto_shash_export(shash, &sha512)) d370cec3219490 Tadeusz Struk 2014-06-05 243 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 244 for (i = 0; i < digest_size >> 3; i++, hash512_state_out++) d370cec3219490 Tadeusz Struk 2014-06-05 245 *hash512_state_out = cpu_to_be64(*(sha512.state + i)); d370cec3219490 Tadeusz Struk 2014-06-05 246 break; d370cec3219490 Tadeusz Struk 2014-06-05 247 default: d370cec3219490 Tadeusz Struk 2014-06-05 248 return -EFAULT; d370cec3219490 Tadeusz Struk 2014-06-05 249 } aa408d6019775c Struk, Tadeusz 2014-11-14 250 memzero_explicit(ipad, block_size); aa408d6019775c Struk, Tadeusz 2014-11-14 251 memzero_explicit(opad, block_size); d370cec3219490 Tadeusz Struk 2014-06-05 252 return 0; d370cec3219490 Tadeusz Struk 2014-06-05 253 } d370cec3219490 Tadeusz Struk 2014-06-05 254 :::::: The code at line 156 was first introduced by commit :::::: 48eb3691e8beab349e3a700d45f070be8d4b88ba crypto: qat - Ensure ipad and opad are zeroed :::::: TO: Herbert Xu <herbert(a)gondor.apana.org.au&gt; :::::: CC: Herbert Xu <herbert(a)gondor.apana.org.au&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org