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.marinush...@gmail.com>
:::::: CC: David Howells <dhowe...@redhat.com>
---
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Description: Binary data
