Backport of 817aef260037f33ee0f44c17fe341323d3aebd6d
Signed-off-by: Yannik Sembritzki yannik@sembritzki.me --- certs/system_keyring.c | 3 ++- crypto/asymmetric_keys/pkcs7_key_type.c | 2 +- include/linux/verification.h | 6 ++++++ 3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/certs/system_keyring.c b/certs/system_keyring.c index 50979d6d..24766505 100644 --- a/certs/system_keyring.c +++ b/certs/system_keyring.c @@ -14,6 +14,7 @@ #include <linux/sched.h> #include <linux/cred.h> #include <linux/err.h> +#include <linux/verification.h> #include <keys/asymmetric-type.h> #include <keys/system_keyring.h> #include <crypto/pkcs7.h> @@ -207,7 +208,7 @@ int verify_pkcs7_signature(const void *data, size_t len,
if (!trusted_keys) { trusted_keys = builtin_trusted_keys; - } else if (trusted_keys == (void *)1UL) { + } else if (trusted_keys == VERIFY_USE_SECONDARY_KEYRING) { #ifdef CONFIG_SECONDARY_TRUSTED_KEYRING trusted_keys = secondary_trusted_keys; #else diff --git a/crypto/asymmetric_keys/pkcs7_key_type.c b/crypto/asymmetric_keys/pkcs7_key_type.c index 1063b644..b2aa925a 100644 --- a/crypto/asymmetric_keys/pkcs7_key_type.c +++ b/crypto/asymmetric_keys/pkcs7_key_type.c @@ -62,7 +62,7 @@ static int pkcs7_preparse(struct key_preparsed_payload *prep)
return verify_pkcs7_signature(NULL, 0, prep->data, prep->datalen, - (void *)1UL, usage, + VERIFY_USE_SECONDARY_KEYRING, usage, pkcs7_view_content, prep); }
diff --git a/include/linux/verification.h b/include/linux/verification.h index a10549a6..cfa4730d 100644 --- a/include/linux/verification.h +++ b/include/linux/verification.h @@ -12,6 +12,12 @@ #ifndef _LINUX_VERIFICATION_H #define _LINUX_VERIFICATION_H
+/* + * Indicate that both builtin trusted keys and secondary trusted keys + * should be used. + */ +#define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL) + /* * The use to which an asymmetric key is being put. */