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authorArtem Savkov <asavkov@redhat.com>2016-10-26 15:02:09 +0100
committerJames Morris <james.l.morris@oracle.com>2016-10-27 16:03:33 +1100
commit31e6ec4519c0fe0ee4a2f6ba3ab278e9506b9500 (patch)
treeba04b350b84151753936b5a2ed9087bc4721d8cd /security
parent7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb (diff)
downloadlinux-stericsson-31e6ec4519c0fe0ee4a2f6ba3ab278e9506b9500.tar.gz
security/keys: make BIG_KEYS dependent on stdrng.
Since BIG_KEYS can't be compiled as module it requires one of the "stdrng" providers to be compiled into kernel. Otherwise big_key_crypto_init() fails on crypto_alloc_rng step and next dereference of big_key_skcipher (e.g. in big_key_preparse()) results in a NULL pointer dereference. Fixes: 13100a72f40f5748a04017e0ab3df4cf27c809ef ('Security: Keys: Big keys stored encrypted') Signed-off-by: Artem Savkov <asavkov@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> cc: Stephan Mueller <smueller@chronox.de> cc: Kirill Marinushkin <k.marinushkin@gmail.com> cc: stable@vger.kernel.org Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'security')
-rw-r--r--security/keys/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index f826e8739023..d942c7c2bc0a 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -41,7 +41,7 @@ config BIG_KEYS
bool "Large payload keys"
depends on KEYS
depends on TMPFS
- select CRYPTO
+ depends on (CRYPTO_ANSI_CPRNG = y || CRYPTO_DRBG = y)
select CRYPTO_AES
select CRYPTO_ECB
select CRYPTO_RNG