[PATCH 3.2 105/152] crypto: prefix module autoloading with "crypto-"

Ben Hutchings
2015-02-17T01:46:53Z

From: Kees Cook <keescook@chromium.org>

commit 5d26a105b5a73e5635eae0629b42fa0a90e07b7b upstream.

This prefixes all crypto module loading with "crypto-" so we never run
the risk of exposing module auto-loading to userspace via a crypto API,
as demonstrated by Mathias Krause:

https://lkml.org/lkml/2013/3/4/70

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
[bwh: Backported to 3.2:
- Adjust filenames
- Drop changes to algorithms and drivers we don't have
- Add aliases to generic C implementations that didn't need them before]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/s390/crypto/aes_s390.c | 2 +-
arch/s390/crypto/des_s390.c | 4 ++--
arch/s390/crypto/ghash_s390.c | 2 +-
arch/s390/crypto/sha1_s390.c | 2 +-
arch/s390/crypto/sha256_s390.c | 4 ++--
arch/s390/crypto/sha512_s390.c | 4 ++--
arch/x86/crypto/aes_glue.c | 4 ++--
arch/x86/crypto/aesni-intel_glue.c | 2 +-
arch/x86/crypto/blowfish_glue.c | 4 ++--
arch/x86/crypto/crc32c-intel.c | 4 ++--
arch/x86/crypto/ghash-clmulni-intel_glue.c | 2 +-
arch/x86/crypto/salsa20_glue.c | 4 ++--
arch/x86/crypto/sha1_ssse3_glue.c | 2 +-
arch/x86/crypto/twofish_glue.c | 4 ++--
arch/x86/crypto/twofish_glue_3way.c | 4 ++--
crypto/aes_generic.c | 2 +-
crypto/ansi_cprng.c | 2 +-
crypto/anubis.c | 1 +
crypto/api.c | 4 ++--
crypto/arc4.c | 1 +
crypto/blowfish_generic.c | 2 +-
crypto/camellia.c | 2 +-
crypto/cast5.c | 2 +-
crypto/cast6.c | 2 +-
crypto/ccm.c | 4 ++--
crypto/crc32c.c | 2 +-
crypto/crypto_null.c | 6 +++---
crypto/ctr.c | 2 +-
crypto/deflate.c | 2 +-
crypto/des_generic.c | 2 +-
crypto/fcrypt.c | 1 +
crypto/gcm.c | 6 +++---
crypto/ghash-generic.c | 2 +-
crypto/khazad.c | 1 +
crypto/krng.c | 2 +-
crypto/lzo.c | 1 +
crypto/md4.c | 2 +-
crypto/md5.c | 1 +
crypto/michael_mic.c | 1 +
crypto/rmd128.c | 1 +
crypto/rmd160.c | 1 +
crypto/rmd256.c | 1 +
crypto/rmd320.c | 1 +
crypto/salsa20_generic.c | 2 +-
crypto/seed.c | 1 +
crypto/serpent.c | 4 ++--
crypto/sha1_generic.c | 2 +-
crypto/sha256_generic.c | 4 ++--
crypto/sha512_generic.c | 4 ++--
crypto/tea.c | 4 ++--
crypto/tgr192.c | 4 ++--
crypto/twofish_generic.c | 2 +-
crypto/wp512.c | 4 ++--
crypto/zlib.c | 1 +
drivers/crypto/padlock-aes.c | 2 +-
drivers/crypto/padlock-sha.c | 8 ++++----
drivers/s390/crypto/ap_bus.c | 3 ++-
include/linux/crypto.h | 13 +++++++++++++

--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -972,7 +972,7 @@ static void __exit aes_s390_fini(void)
module_init(aes_s390_init);
module_exit(aes_s390_fini);

-MODULE_ALIAS("aes-all");
+MODULE_ALIAS_CRYPTO("aes-all");

MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
MODULE_LICENSE("GPL");
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -626,8 +626,8 @@ static void __exit des_s390_exit(void)
module_init(des_s390_init);
module_exit(des_s390_exit);

-MODULE_ALIAS("des");
-MODULE_ALIAS("des3_ede");
+MODULE_ALIAS_CRYPTO("des");
+MODULE_ALIAS_CRYPTO("des3_ede");

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
--- a/arch/s390/crypto/ghash_s390.c
+++ b/arch/s390/crypto/ghash_s390.c
@@ -161,7 +161,7 @@ static void __exit ghash_mod_exit(void)
module_init(ghash_mod_init);
module_exit(ghash_mod_exit);

-MODULE_ALIAS("ghash");
+MODULE_ALIAS_CRYPTO("ghash");

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("GHASH Message Digest Algorithm, s390 implementation");
--- a/arch/s390/crypto/sha1_s390.c
+++ b/arch/s390/crypto/sha1_s390.c
@@ -103,6 +103,6 @@ static void __exit sha1_s390_fini(void)
module_init(sha1_s390_init);
module_exit(sha1_s390_fini);

-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -143,7 +143,7 @@ static void __exit sha256_s390_fini(void
module_init(sha256_s390_init);
module_exit(sha256_s390_fini);

-MODULE_ALIAS("sha256");
-MODULE_ALIAS("sha224");
+MODULE_ALIAS_CRYPTO("sha256");
+MODULE_ALIAS_CRYPTO("sha224");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA256 and SHA224 Secure Hash Algorithm");
--- a/arch/s390/crypto/sha512_s390.c
+++ b/arch/s390/crypto/sha512_s390.c
@@ -86,7 +86,7 @@ static struct shash_alg sha512_alg = {
}
};

-MODULE_ALIAS("sha512");
+MODULE_ALIAS_CRYPTO("sha512");

static int sha384_init(struct shash_desc *desc)
{
@@ -126,7 +126,7 @@ static struct shash_alg sha384_alg = {
}
};

-MODULE_ALIAS("sha384");
+MODULE_ALIAS_CRYPTO("sha384");

static int __init init(void)
{
--- a/arch/x86/crypto/aes_glue.c
+++ b/arch/x86/crypto/aes_glue.c
@@ -67,5 +67,5 @@ module_exit(aes_fini);

MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
-MODULE_ALIAS("aes-asm");
+MODULE_ALIAS_CRYPTO("aes");
+MODULE_ALIAS_CRYPTO("aes-asm");
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -1380,4 +1380,4 @@ module_exit(aesni_exit);

MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");
--- a/arch/x86/crypto/blowfish_glue.c
+++ b/arch/x86/crypto/blowfish_glue.c
@@ -488,5 +488,5 @@ module_exit(fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Blowfish Cipher Algorithm, asm optimized");
-MODULE_ALIAS("blowfish");
-MODULE_ALIAS("blowfish-asm");
+MODULE_ALIAS_CRYPTO("blowfish");
+MODULE_ALIAS_CRYPTO("blowfish-asm");
--- a/arch/x86/crypto/crc32c-intel.c
+++ b/arch/x86/crypto/crc32c-intel.c
@@ -194,5 +194,5 @@ MODULE_AUTHOR("Austin Zhang <austin.zhan
MODULE_DESCRIPTION("CRC32c (Castagnoli) optimization using Intel Hardware.");
MODULE_LICENSE("GPL");

-MODULE_ALIAS("crc32c");
-MODULE_ALIAS("crc32c-intel");
+MODULE_ALIAS_CRYPTO("crc32c");
+MODULE_ALIAS_CRYPTO("crc32c-intel");
--- a/arch/x86/crypto/ghash-clmulni-intel_glue.c
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -339,4 +339,4 @@ module_exit(ghash_pclmulqdqni_mod_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("GHASH Message Digest Algorithm, "
"acclerated by PCLMULQDQ-NI");
-MODULE_ALIAS("ghash");
+MODULE_ALIAS_CRYPTO("ghash");
--- a/arch/x86/crypto/salsa20_glue.c
+++ b/arch/x86/crypto/salsa20_glue.c
@@ -125,5 +125,5 @@ module_exit(fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION ("Salsa20 stream cipher algorithm (optimized assembly version)");
-MODULE_ALIAS("salsa20");
-MODULE_ALIAS("salsa20-asm");
+MODULE_ALIAS_CRYPTO("salsa20");
+MODULE_ALIAS_CRYPTO("salsa20-asm");
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -237,4 +237,4 @@ module_exit(sha1_ssse3_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, Supplemental SSE3 accelerated");

-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
--- a/arch/x86/crypto/twofish_glue.c
+++ b/arch/x86/crypto/twofish_glue.c
@@ -97,5 +97,5 @@ module_exit(fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION ("Twofish Cipher Algorithm, asm optimized");
-MODULE_ALIAS("twofish");
-MODULE_ALIAS("twofish-asm");
+MODULE_ALIAS_CRYPTO("twofish");
+MODULE_ALIAS_CRYPTO("twofish-asm");
--- a/arch/x86/crypto/twofish_glue_3way.c
+++ b/arch/x86/crypto/twofish_glue_3way.c
@@ -468,5 +468,5 @@ module_exit(fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Twofish Cipher Algorithm, 3-way parallel asm optimized");
-MODULE_ALIAS("twofish");
-MODULE_ALIAS("twofish-asm");
+MODULE_ALIAS_CRYPTO("twofish");
+MODULE_ALIAS_CRYPTO("twofish-asm");
--- a/crypto/aes_generic.c
+++ b/crypto/aes_generic.c
@@ -1475,4 +1475,4 @@ module_exit(aes_fini);

MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
MODULE_LICENSE("Dual BSD/GPL");
-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -485,4 +485,4 @@ module_param(dbg, int, 0);
MODULE_PARM_DESC(dbg, "Boolean to enable debugging (0/1 == off/on)");
module_init(prng_mod_init);
module_exit(prng_mod_fini);
-MODULE_ALIAS("stdrng");
+MODULE_ALIAS_CRYPTO("stdrng");
--- a/crypto/anubis.c
+++ b/crypto/anubis.c
@@ -705,3 +705,4 @@ module_exit(anubis_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Anubis Cryptographic Algorithm");
+MODULE_ALIAS_CRYPTO("anubis");
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -222,11 +222,11 @@ struct crypto_alg *crypto_larval_lookup(

alg = crypto_alg_lookup(name, type, mask);
if (!alg) {
- request_module("%s", name);
+ request_module("crypto-%s", name);

if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask &
CRYPTO_ALG_NEED_FALLBACK))
- request_module("%s-all", name);
+ request_module("crypto-%s-all", name);

alg = crypto_alg_lookup(name, type, mask);
}
--- a/crypto/arc4.c
+++ b/crypto/arc4.c
@@ -101,3 +101,4 @@ module_exit(arc4_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ARC4 Cipher Algorithm");
MODULE_AUTHOR("Jon Oberheide <jon@oberheide.org>");
+MODULE_ALIAS_CRYPTO("arc4");
--- a/crypto/blowfish_generic.c
+++ b/crypto/blowfish_generic.c
@@ -139,4 +139,4 @@ module_exit(blowfish_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Blowfish Cipher Algorithm");
-MODULE_ALIAS("blowfish");
+MODULE_ALIAS_CRYPTO("blowfish");
--- a/crypto/camellia.c
+++ b/crypto/camellia.c
@@ -1114,3 +1114,4 @@ module_exit(camellia_fini);

MODULE_DESCRIPTION("Camellia Cipher Algorithm");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("camellia");
--- a/crypto/cast5.c
+++ b/crypto/cast5.c
@@ -806,4 +806,5 @@ module_exit(cast5_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Cast5 Cipher Algorithm");
+MODULE_ALIAS_CRYPTO("cast5");

--- a/crypto/cast6.c
+++ b/crypto/cast6.c
@@ -545,3 +545,4 @@ module_exit(cast6_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Cast6 Cipher Algorithm");
+MODULE_ALIAS_CRYPTO("cast6");
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -888,5 +888,5 @@ module_exit(crypto_ccm_module_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Counter with CBC MAC");
-MODULE_ALIAS("ccm_base");
-MODULE_ALIAS("rfc4309");
+MODULE_ALIAS_CRYPTO("ccm_base");
+MODULE_ALIAS_CRYPTO("rfc4309");
--- a/crypto/crc32c.c
+++ b/crypto/crc32c.c
@@ -258,3 +258,4 @@ module_exit(crc32c_mod_fini);
MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations wrapper for lib/crc32c");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("crc32c");
--- a/crypto/crypto_null.c
+++ b/crypto/crypto_null.c
@@ -156,9 +156,9 @@ static struct crypto_alg skcipher_null =
.decrypt = skcipher_null_crypt } }
};

-MODULE_ALIAS("compress_null");
-MODULE_ALIAS("digest_null");
-MODULE_ALIAS("cipher_null");
+MODULE_ALIAS_CRYPTO("compress_null");
+MODULE_ALIAS_CRYPTO("digest_null");
+MODULE_ALIAS_CRYPTO("cipher_null");

static int __init crypto_null_mod_init(void)
{
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -421,4 +421,4 @@ module_exit(crypto_ctr_module_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("CTR Counter block mode");
-MODULE_ALIAS("rfc3686");
+MODULE_ALIAS_CRYPTO("rfc3686");
--- a/crypto/deflate.c
+++ b/crypto/deflate.c
@@ -223,4 +223,4 @@ module_exit(deflate_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Deflate Compression Algorithm for IPCOMP");
MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
-
+MODULE_ALIAS_CRYPTO("deflate");
--- a/crypto/des_generic.c
+++ b/crypto/des_generic.c
@@ -975,7 +975,7 @@ static struct crypto_alg des3_ede_alg =
.cia_decrypt = des3_ede_decrypt } }
};

-MODULE_ALIAS("des3_ede");
+MODULE_ALIAS_CRYPTO("des3_ede");

static int __init des_generic_mod_init(void)
{
--- a/crypto/fcrypt.c
+++ b/crypto/fcrypt.c
@@ -421,3 +421,4 @@ module_exit(fcrypt_mod_fini);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("FCrypt Cipher Algorithm");
MODULE_AUTHOR("David Howells <dhowells@redhat.com>");
+MODULE_ALIAS_CRYPTO("fcrypt");
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -1374,6 +1374,6 @@ module_exit(crypto_gcm_module_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Galois/Counter Mode");
MODULE_AUTHOR("Mikko Herranen <mh1@iki.fi>");
-MODULE_ALIAS("gcm_base");
-MODULE_ALIAS("rfc4106");
-MODULE_ALIAS("rfc4543");
+MODULE_ALIAS_CRYPTO("gcm_base");
+MODULE_ALIAS_CRYPTO("rfc4106");
+MODULE_ALIAS_CRYPTO("rfc4543");
--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -173,4 +173,4 @@ module_exit(ghash_mod_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("GHASH Message Digest Algorithm");
-MODULE_ALIAS("ghash");
+MODULE_ALIAS_CRYPTO("ghash");
--- a/crypto/khazad.c
+++ b/crypto/khazad.c
@@ -881,3 +881,4 @@ module_exit(khazad_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Khazad Cryptographic Algorithm");
+MODULE_ALIAS_CRYPTO("khazad");
--- a/crypto/krng.c
+++ b/crypto/krng.c
@@ -63,4 +63,4 @@ module_exit(krng_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Kernel Random Number Generator");
-MODULE_ALIAS("stdrng");
+MODULE_ALIAS_CRYPTO("stdrng");
--- a/crypto/lzo.c
+++ b/crypto/lzo.c
@@ -104,3 +104,4 @@ module_exit(lzo_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("LZO Compression Algorithm");
+MODULE_ALIAS_CRYPTO("lzo");
--- a/crypto/md4.c
+++ b/crypto/md4.c
@@ -255,4 +255,4 @@ module_exit(md4_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("MD4 Message Digest Algorithm");
-
+MODULE_ALIAS_CRYPTO("md4");
--- a/crypto/md5.c
+++ b/crypto/md5.c
@@ -168,3 +168,4 @@ module_exit(md5_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("MD5 Message Digest Algorithm");
+MODULE_ALIAS_CRYPTO("md5");
--- a/crypto/michael_mic.c
+++ b/crypto/michael_mic.c
@@ -184,3 +184,4 @@ module_exit(michael_mic_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Michael MIC");
MODULE_AUTHOR("Jouni Malinen <j@w1.fi>");
+MODULE_ALIAS_CRYPTO("michael_mic");
--- a/crypto/rmd128.c
+++ b/crypto/rmd128.c
@@ -327,3 +327,4 @@ module_exit(rmd128_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>");
MODULE_DESCRIPTION("RIPEMD-128 Message Digest");
+MODULE_ALIAS_CRYPTO("rmd128");
--- a/crypto/rmd160.c
+++ b/crypto/rmd160.c
@@ -371,3 +371,4 @@ module_exit(rmd160_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>");
MODULE_DESCRIPTION("RIPEMD-160 Message Digest");
+MODULE_ALIAS_CRYPTO("rmd160");
--- a/crypto/rmd256.c
+++ b/crypto/rmd256.c
@@ -346,3 +346,4 @@ module_exit(rmd256_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>");
MODULE_DESCRIPTION("RIPEMD-256 Message Digest");
+MODULE_ALIAS_CRYPTO("rmd256");
--- a/crypto/rmd320.c
+++ b/crypto/rmd320.c
@@ -395,3 +395,4 @@ module_exit(rmd320_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>");
MODULE_DESCRIPTION("RIPEMD-320 Message Digest");
+MODULE_ALIAS_CRYPTO("rmd320");
--- a/crypto/salsa20_generic.c
+++ b/crypto/salsa20_generic.c
@@ -249,4 +249,4 @@ module_exit(salsa20_generic_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION ("Salsa20 stream cipher algorithm");
-MODULE_ALIAS("salsa20");
+MODULE_ALIAS_CRYPTO("salsa20");
--- a/crypto/seed.c
+++ b/crypto/seed.c
@@ -477,3 +477,4 @@ module_exit(seed_fini);
MODULE_DESCRIPTION("SEED Cipher Algorithm");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Hye-Shik Chang <perky@FreeBSD.org>, Kim Hyun <hkim@kisa.or.kr>");
+MODULE_ALIAS_CRYPTO("seed");
--- a/crypto/serpent.c
+++ b/crypto/serpent.c
@@ -584,4 +584,5 @@ module_exit(serpent_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Serpent and tnepres (kerneli compatible serpent reversed) Cipher Algorithm");
MODULE_AUTHOR("Dag Arne Osvik <osvik@ii.uib.no>");
-MODULE_ALIAS("tnepres");
+MODULE_ALIAS_CRYPTO("tnepres");
+MODULE_ALIAS_CRYPTO("serpent");
--- a/crypto/sha1_generic.c
+++ b/crypto/sha1_generic.c
@@ -153,4 +153,4 @@ module_exit(sha1_generic_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");

-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
--- a/crypto/sha256_generic.c
+++ b/crypto/sha256_generic.c
@@ -398,5 +398,5 @@ module_exit(sha256_generic_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm");

-MODULE_ALIAS("sha224");
-MODULE_ALIAS("sha256");
+MODULE_ALIAS_CRYPTO("sha224");
+MODULE_ALIAS_CRYPTO("sha256");
--- a/crypto/sha512_generic.c
+++ b/crypto/sha512_generic.c
@@ -294,5 +294,5 @@ module_exit(sha512_generic_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");

-MODULE_ALIAS("sha384");
-MODULE_ALIAS("sha512");
+MODULE_ALIAS_CRYPTO("sha384");
+MODULE_ALIAS_CRYPTO("sha512");
--- a/crypto/tea.c
+++ b/crypto/tea.c
@@ -299,8 +299,8 @@ static void __exit tea_mod_fini(void)
crypto_unregister_alg(&xeta_alg);
}

-MODULE_ALIAS("xtea");
-MODULE_ALIAS("xeta");
+MODULE_ALIAS_CRYPTO("xtea");
+MODULE_ALIAS_CRYPTO("xeta");

module_init(tea_mod_init);
module_exit(tea_mod_fini);
--- a/crypto/tgr192.c
+++ b/crypto/tgr192.c
@@ -702,8 +702,8 @@ static void __exit tgr192_mod_fini(void)
crypto_unregister_shash(&tgr128);
}

-MODULE_ALIAS("tgr160");
-MODULE_ALIAS("tgr128");
+MODULE_ALIAS_CRYPTO("tgr160");
+MODULE_ALIAS_CRYPTO("tgr128");

module_init(tgr192_mod_init);
module_exit(tgr192_mod_fini);
--- a/crypto/twofish_generic.c
+++ b/crypto/twofish_generic.c
@@ -212,4 +212,4 @@ module_exit(twofish_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION ("Twofish Cipher Algorithm");
-MODULE_ALIAS("twofish");
+MODULE_ALIAS_CRYPTO("twofish");
--- a/crypto/wp512.c
+++ b/crypto/wp512.c
@@ -1194,8 +1194,8 @@ static void __exit wp512_mod_fini(void)
crypto_unregister_shash(&wp256);
}

-MODULE_ALIAS("wp384");
-MODULE_ALIAS("wp256");
+MODULE_ALIAS_CRYPTO("wp384");
+MODULE_ALIAS_CRYPTO("wp256");

module_init(wp512_mod_init);
module_exit(wp512_mod_fini);
--- a/crypto/zlib.c
+++ b/crypto/zlib.c
@@ -378,3 +378,4 @@ module_exit(zlib_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Zlib Compression Algorithm");
MODULE_AUTHOR("Sony Corporation");
+MODULE_ALIAS_CRYPTO("zlib");
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -559,4 +559,4 @@ MODULE_DESCRIPTION("VIA PadLock AES algo
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michal Ludvig");

-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");
--- a/drivers/crypto/padlock-sha.c
+++ b/drivers/crypto/padlock-sha.c
@@ -593,7 +593,7 @@ MODULE_DESCRIPTION("VIA PadLock SHA1/SHA
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michal Ludvig");

-MODULE_ALIAS("sha1-all");
-MODULE_ALIAS("sha256-all");
-MODULE_ALIAS("sha1-padlock");
-MODULE_ALIAS("sha256-padlock");
+MODULE_ALIAS_CRYPTO("sha1-all");
+MODULE_ALIAS_CRYPTO("sha256-all");
+MODULE_ALIAS_CRYPTO("sha1-padlock");
+MODULE_ALIAS_CRYPTO("sha256-padlock");
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -25,6 +25,19 @@
#include <linux/uaccess.h>

/*
+ * Autoloaded crypto modules should only use a prefixed name to avoid allowing
+ * arbitrary modules to be loaded. Loading from userspace may still need the
+ * unprefixed names, so retains those aliases as well.
+ * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
+ * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
+ * expands twice on the same line. Instead, use a separate base name for the
+ * alias.
+ */
+#define MODULE_ALIAS_CRYPTO(name) \
+ __MODULE_INFO(alias, alias_userspace, name); \
+ __MODULE_INFO(alias, alias_crypto, "crypto-" name)
+
+/*
* Algorithm masks and types.
*/
#define CRYPTO_ALG_TYPE_MASK 0x0000000f