Commit 31e6ec45 authored by Artem Savkov's avatar Artem Savkov Committed by James Morris

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: 13100a72 ('Security: Keys: Big keys stored encrypted')
Signed-off-by: default avatarArtem Savkov <asavkov@redhat.com>
Signed-off-by: default avatarDavid 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: default avatarJames Morris <james.l.morris@oracle.com>
parent 7df3e59c
...@@ -41,7 +41,7 @@ config BIG_KEYS ...@@ -41,7 +41,7 @@ config BIG_KEYS
bool "Large payload keys" bool "Large payload keys"
depends on KEYS depends on KEYS
depends on TMPFS depends on TMPFS
select CRYPTO depends on (CRYPTO_ANSI_CPRNG = y || CRYPTO_DRBG = y)
select CRYPTO_AES select CRYPTO_AES
select CRYPTO_ECB select CRYPTO_ECB
select CRYPTO_RNG select CRYPTO_RNG
......
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