tree: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master head: 8f44df154de79a61b0e86734f51737b8cccf8dfe commit: d56d72c6a0612be14ccb455c92886d2cb102c2ab [84/87] KEYS: Use skcipher for big keys config: s390-allyesconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout d56d72c6a0612be14ccb455c92886d2cb102c2ab # save the attached .config to linux build tree make.cross ARCH=s390 All warnings (new ones prefixed by >>): security/keys/big_key.c: In function 'big_key_crypt': >> security/keys/big_key.c:118:1: warning: 'big_key_crypt' uses dynamic stack allocation } ^ vim +/big_key_crypt +118 security/keys/big_key.c d56d72c6 Herbert Xu 2016-06-22 102 skcipher_request_set_tfm(req, big_key_skcipher); d56d72c6 Herbert Xu 2016-06-22 103 skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP, d56d72c6 Herbert Xu 2016-06-22 104 NULL, NULL); 13100a72 Kirill Marinushkin 2016-04-12 105 13100a72 Kirill Marinushkin 2016-04-12 106 sg_init_one(&sgio, data, datalen); d56d72c6 Herbert Xu 2016-06-22 107 skcipher_request_set_crypt(req, &sgio, &sgio, datalen, NULL); 13100a72 Kirill Marinushkin 2016-04-12 108 13100a72 Kirill Marinushkin 2016-04-12 109 if (op == BIG_KEY_ENC) d56d72c6 Herbert Xu 2016-06-22 110 ret = crypto_skcipher_encrypt(req); 13100a72 Kirill Marinushkin 2016-04-12 111 else d56d72c6 Herbert Xu 2016-06-22 112 ret = crypto_skcipher_decrypt(req); d56d72c6 Herbert Xu 2016-06-22 113 d56d72c6 Herbert Xu 2016-06-22 114 skcipher_request_zero(req); 13100a72 Kirill Marinushkin 2016-04-12 115 13100a72 Kirill Marinushkin 2016-04-12 116 error: 13100a72 Kirill Marinushkin 2016-04-12 117 return ret; 13100a72 Kirill Marinushkin 2016-04-12 @118 } 13100a72 Kirill Marinushkin 2016-04-12 119 13100a72 Kirill Marinushkin 2016-04-12 120 /* 002edaf7 David Howells 2014-07-18 121 * Preparse a big key ab3c3587 David Howells 2013-09-24 122 */ 002edaf7 David Howells 2014-07-18 123 int big_key_preparse(struct key_preparsed_payload *prep) ab3c3587 David Howells 2013-09-24 124 { 146aa8b1 David Howells 2015-10-21 125 struct path *path = (struct path *)&prep->payload.data[big_key_path]; ab3c3587 David Howells 2013-09-24 126 struct file *file; :::::: The code at line 118 was first introduced by commit :::::: 13100a72f40f5748a04017e0ab3df4cf27c809ef Security: Keys: Big keys stored encrypted :::::: TO: Kirill Marinushkin <k.marinushkin@xxxxxxxxx> :::::: CC: David Howells <dhowells@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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