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authorLEROY Christophe <christophe.leroy@c-s.fr>2017-09-12 09:03:39 (GMT)
committerXie Xiaobo <xiaobo.xie@nxp.com>2017-12-13 03:18:14 (GMT)
commit6d52ef703d187e992c771f2458280e95630e37b8 (patch)
tree76a271317ade48b6e78e36b975e00ae5820a3f49
parentd773489c0d5e10cd6f48baab7a746e4f3eca27b2 (diff)
downloadlinux-6d52ef703d187e992c771f2458280e95630e37b8.tar.xz
crypto: talitos - Don't provide setkey for non hmac hashing algs.
commit 56136631573baa537a15e0012055ffe8cfec1a33 upstream. Today, md5sum fails with error -ENOKEY because a setkey function is set for non hmac hashing algs, see strace output below: mmap(NULL, 378880, PROT_READ, MAP_SHARED, 6, 0) = 0x77f50000 accept(3, 0, NULL) = 7 vmsplice(5, [{"bin/\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 378880}], 1, SPLICE_F_MORE|SPLICE_F_GIFT) = 262144 splice(4, NULL, 7, NULL, 262144, SPLICE_F_MORE) = -1 ENOKEY (Required key not available) write(2, "Generation of hash for file kcap"..., 50) = 50 munmap(0x77f50000, 378880) = 0 This patch ensures that setkey() function is set only for hmac hashing. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/crypto/talitos.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 571de2f..f6f811a 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -3057,7 +3057,8 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
t_alg->algt.alg.hash.final = ahash_final;
t_alg->algt.alg.hash.finup = ahash_finup;
t_alg->algt.alg.hash.digest = ahash_digest;
- t_alg->algt.alg.hash.setkey = ahash_setkey;
+ if (!strncmp(alg->cra_name, "hmac", 4))
+ t_alg->algt.alg.hash.setkey = ahash_setkey;
t_alg->algt.alg.hash.import = ahash_import;
t_alg->algt.alg.hash.export = ahash_export;