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| author | Artem Savkov <asavkov@redhat.com> | 2016-10-26 16:02:09 +0200 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2016-10-27 07:03:33 +0200 |
| commit | 31e6ec4519c0fe0ee4a2f6ba3ab278e9506b9500 (patch) | |
| tree | ba04b350b84151753936b5a2ed9087bc4721d8cd /security | |
| parent | KEYS: Sort out big_key initialisation (diff) | |
| download | linux-31e6ec4519c0fe0ee4a2f6ba3ab278e9506b9500.tar.xz linux-31e6ec4519c0fe0ee4a2f6ba3ab278e9506b9500.zip | |
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/Kconfig | 2 |
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 |